861802992384 has 72 divisors (see below), whose sum is σ = 2293809504000. Its totient is φ = 287248032768.

The previous prime is 861802992371. The next prime is 861802992431. The reversal of 861802992384 is 483299208168.

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, 15091117 + ... + 15148115.

Almost surely, 2^861802992384 is an apocalyptic number.

It is an amenable number.

861802992384 is an abundant number, since it is smaller than the sum of its proper divisors (1432006511616).

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

861802992384 is a wasteful number, since it uses less digits than its factorization.

861802992384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76705 (or 76691 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 60.

The spelling of 861802992384 in words is "eight hundred sixty-one billion, eight hundred two million, nine hundred ninety-two thousand, three hundred eighty-four".