869686595712 has 448 divisors, whose sum is σ = 2843936508960. Its totient is φ = 262602362880.

The previous prime is 869686595689. The next prime is 869686595759. The reversal of 869686595712 is 217595686968.

It is a super-2 number, since 2×869686595712² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 321271863 + ... + 321274569.

Almost surely, 2^869686595712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869686595712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1421968254480).

869686595712 is an abundant number, since it is smaller than the sum of its proper divisors (1974249913248).

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

869686595712 is a wasteful number, since it uses less digits than its factorization.

869686595712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063 (or 3036 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 72.

The spelling of 869686595712 in words is "eight hundred sixty-nine billion, six hundred eighty-six million, five hundred ninety-five thousand, seven hundred twelve".