869611872384 has 96 divisors (see below), whose sum is σ = 2649598733340. Its totient is φ = 272819404800.

The previous prime is 869611872379. The next prime is 869611872413. The reversal of 869611872384 is 483278116968.

869611872384 is a `hidden beast` number, since 8 + 6 + 9 + 611 + 8 + 7 + 2 + 3 + 8 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 862535697984 + 7076174400 = 928728^2 + 84120^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22182517 + ... + 22221684.

Almost surely, 2^869611872384 is an apocalyptic number.

It is an amenable number.

869611872384 is an abundant number, since it is smaller than the sum of its proper divisors (1779986860956).

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

869611872384 is a wasteful number, since it uses less digits than its factorization.

869611872384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44404238 (or 44404223 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The spelling of 869611872384 in words is "eight hundred sixty-nine billion, six hundred eleven million, eight hundred seventy-two thousand, three hundred eighty-four".