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67072627421 = 199691487769
BaseRepresentation
bin111110011101110101…
…110001001011011101
320102010101222111121222
4332131311301023131
52044331043034141
650451315103125
74563056632502
oct763565611335
9212111874558
1067072627421
1126499827798
1210bba5a1aa5
13642bb11827
143363d174a9
151b2861614b
hexf9dd712dd

67072627421 has 8 divisors (see below), whose sum is σ = 67507368000. Its totient is φ = 66638864160.

The previous prime is 67072627399. The next prime is 67072627423. The reversal of 67072627421 is 12472627076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67072627421 - 26 = 67072627357 is a prime.

It is a super-2 number, since 2×670726274212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67072627423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106376 + ... + 381393.

It is an arithmetic number, because the mean of its divisors is an integer number (8438421000).

Almost surely, 267072627421 is an apocalyptic number.

It is an amenable number.

67072627421 is a deficient number, since it is larger than the sum of its proper divisors (434740579).

67072627421 is a wasteful number, since it uses less digits than its factorization.

67072627421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488659.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 67072627421 in words is "sixty-seven billion, seventy-two million, six hundred twenty-seven thousand, four hundred twenty-one".

Divisors: 1 199 691 137509 487769 97066031 337048379 67072627421