71690291564 has 12 divisors (see below), whose sum is σ = 125476354584. Its totient is φ = 35839904544.

The previous prime is 71690291489. The next prime is 71690291639. The reversal of 71690291564 is 46519209617.

It is an interprime number because it is at equal distance from previous prime (71690291489) and next prime (71690291639).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279454 + ... + 1334309.

It is an arithmetic number, because the mean of its divisors is an integer number (10456362882).

Almost surely, 2^71690291564 is an apocalyptic number.

It is an amenable number.

71690291564 is a deficient number, since it is larger than the sum of its proper divisors (53786063020).

71690291564 is a wasteful number, since it uses less digits than its factorization.

71690291564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620624 (or 2620622 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 71690291564 in words is "seventy-one billion, six hundred ninety million, two hundred ninety-one thousand, five hundred sixty-four".