863872680772 has 12 divisors (see below), whose sum is σ = 1512513580396. Its totient is φ = 431725943520.

The previous prime is 863872680761. The next prime is 863872680793. The reversal of 863872680772 is 277086278368.

It can be written as a sum of positive squares in 2 ways, for example, as 533183277636 + 330689403136 = 730194^2 + 575056^2 .

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, 52589979 + ... + 52606402.

Almost surely, 2^863872680772 is an apocalyptic number.

It is an amenable number.

863872680772 is a deficient number, since it is larger than the sum of its proper divisors (648640899624).

863872680772 is a wasteful number, since it uses less digits than its factorization.

863872680772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105198438 (or 105198436 counting only the distinct ones).

The product of its (nonzero) digits is 75866112, while the sum is 64.

The spelling of 863872680772 in words is "eight hundred sixty-three billion, eight hundred seventy-two million, six hundred eighty thousand, seven hundred seventy-two".