860831391552 has 112 divisors (see below), whose sum is σ = 2570350968000. Its totient is φ = 251862876160.

The previous prime is 860831391551. The next prime is 860831391583. The reversal of 860831391552 is 255193138068.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 860831391495 and 860831391504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860831391551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6966177 + ... + 7088672.

Almost surely, 2^860831391552 is an apocalyptic number.

It is an amenable number.

860831391552 is an abundant number, since it is smaller than the sum of its proper divisors (1709519576448).

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

860831391552 is a wasteful number, since it uses less digits than its factorization.

860831391552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14054904 (or 14054894 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 860831391552 in words is "eight hundred sixty billion, eight hundred thirty-one million, three hundred ninety-one thousand, five hundred fifty-two".