869969638080 has 84 divisors (see below), whose sum is σ = 2992333077552. Its totient is φ = 231991902720.

The previous prime is 869969638051. The next prime is 869969638099. The reversal of 869969638080 is 80836969968.

869969638080 is a `hidden beast` number, since 86 + 9 + 9 + 6 + 96 + 380 + 80 = 666.

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

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, 151033516 + ... + 151039275.

It is an arithmetic number, because the mean of its divisors is an integer number (35623012828).

Almost surely, 2^869969638080 is an apocalyptic number.

869969638080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

869969638080 is an abundant number, since it is smaller than the sum of its proper divisors (2122363439472).

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

869969638080 is a wasteful number, since it uses less digits than its factorization.

869969638080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302072814 (or 302072801 counting only the distinct ones).

The product of its (nonzero) digits is 241864704, while the sum is 72.

The spelling of 869969638080 in words is "eight hundred sixty-nine billion, nine hundred sixty-nine million, six hundred thirty-eight thousand, eighty".