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67368194242895 = 57131271165842247
BaseRepresentation
bin11110101000101011000010…
…10010010111100101001111
322211112100002021202222220102
433110111201102113211033
532312230030211233040
6355140304324241315
720122122440555060
oct1724254122274517
9284470067688812
1067368194242895
111a513766401777
1276804a7b4023b
132b78a412c5720
14128c8d0952567
157bc60477c515
hex3d456149794f

67368194242895 has 32 divisors (see below), whose sum is σ = 100281086803968. Its totient is φ = 42306083422848.

The previous prime is 67368194242889. The next prime is 67368194242897. The reversal of 67368194242895 is 59824249186376.

It is not a de Polignac number, because 67368194242895 - 224 = 67368177465679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67368194242897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 582863339 + ... + 582978908.

It is an arithmetic number, because the mean of its divisors is an integer number (3133783962624).

Almost surely, 267368194242895 is an apocalyptic number.

67368194242895 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

67368194242895 is a deficient number, since it is larger than the sum of its proper divisors (32912892561073).

67368194242895 is a wasteful number, since it uses less digits than its factorization.

67368194242895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165842399.

The product of its digits is 1254113280, while the sum is 74.

Adding to 67368194242895 its sum of digits (74), we get a square (67368194242969 = 82078132).

The spelling of 67368194242895 in words is "sixty-seven trillion, three hundred sixty-eight billion, one hundred ninety-four million, two hundred forty-two thousand, eight hundred ninety-five".

Divisors: 1 5 7 13 35 65 91 127 455 635 889 1651 4445 8255 11557 57785 1165842247 5829211235 8160895729 15155949211 40804478645 75779746055 106091644477 148061965369 530458222385 740309826845 1036433757583 1924805549797 5182168787915 9624027748985 13473638848579 67368194242895