869100780672 has 192 divisors, whose sum is σ = 2610576820800. Its totient is φ = 277007689728.

The previous prime is 869100780589. The next prime is 869100780683. The reversal of 869100780672 is 276087001968.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143578798 + ... + 143584850.

It is an arithmetic number, because the mean of its divisors is an integer number (13596754275).

Almost surely, 2^869100780672 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 869100780672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1305288410400).

869100780672 is an abundant number, since it is smaller than the sum of its proper divisors (1741476040128).

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

869100780672 is a wasteful number, since it uses less digits than its factorization.

869100780672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11515 (or 11500 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 869100780672 in words is "eight hundred sixty-nine billion, one hundred million, seven hundred eighty thousand, six hundred seventy-two".