71860892131 has 12 divisors (see below), whose sum is σ = 83604102480. Its totient is φ = 61587078000.

The previous prime is 71860892063. The next prime is 71860892137. The reversal of 71860892131 is 13129806817.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-71860892131 is a prime.

It is a super-2 number, since 2×71860892131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71860892137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304506 + ... + 486256.

It is an arithmetic number, because the mean of its divisors is an integer number (6967008540).

Almost surely, 2^71860892131 is an apocalyptic number.

71860892131 is a deficient number, since it is larger than the sum of its proper divisors (11743210349).

71860892131 is a wasteful number, since it uses less digits than its factorization.

71860892131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189834 (or 189827 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 71860892131 in words is "seventy-one billion, eight hundred sixty million, eight hundred ninety-two thousand, one hundred thirty-one".