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42878514405057 = 3239284632101067
BaseRepresentation
bin10011011111111011011101…
…00111101001111011000001
312121211010221101121122010020
421233331232213221323001
521110010144141430212
6231110041221524053
712013604362554612
oct1157755647517301
9177733841548106
1042878514405057
11127317485a5211
124986187873629
131ac05711c2936
14a8348ca35c09
154e557dd58d8c
hex26ff6e9e9ec1

42878514405057 has 16 divisors (see below), whose sum is σ = 57412607569920. Its totient is φ = 28465057274192.

The previous prime is 42878514405053. The next prime is 42878514405079. The reversal of 42878514405057 is 75050441587824.

It is a cyclic number.

It is not a de Polignac number, because 42878514405057 - 22 = 42878514405053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42878514405053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19357438 + ... + 21458504.

It is an arithmetic number, because the mean of its divisors is an integer number (3588287973120).

Almost surely, 242878514405057 is an apocalyptic number.

It is an amenable number.

42878514405057 is a deficient number, since it is larger than the sum of its proper divisors (14534093164863).

42878514405057 is a wasteful number, since it uses less digits than its factorization.

42878514405057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129772.

The product of its (nonzero) digits is 50176000, while the sum is 60.

The spelling of 42878514405057 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred fourteen million, four hundred five thousand, fifty-seven".

Divisors: 1 3 239 717 28463 85389 2101067 6303201 6802657 20407971 502155013 1506465039 59802670021 179408010063 14292838135019 42878514405057