71857682940 has 24 divisors (see below), whose sum is σ = 201201512400. Its totient is φ = 19162048768.

The previous prime is 71857682899. The next prime is 71857682951. The reversal of 71857682940 is 4928675817.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598813965 + ... + 598814084.

It is an arithmetic number, because the mean of its divisors is an integer number (8383396350).

Almost surely, 2^71857682940 is an apocalyptic number.

It is an amenable number.

71857682940 is an abundant number, since it is smaller than the sum of its proper divisors (129343829460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71857682940 is a wasteful number, since it uses less digits than its factorization.

71857682940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197628061 (or 1197628059 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 71857682940 in words is "seventy-one billion, eight hundred fifty-seven million, six hundred eighty-two thousand, nine hundred forty".