872814577782 has 32 divisors (see below), whose sum is σ = 1999370230272. Its totient is φ = 248829908544.

The previous prime is 872814577751. The next prime is 872814577829. The reversal of 872814577782 is 287775418278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22717458 + ... + 22755845.

It is an arithmetic number, because the mean of its divisors is an integer number (62480319696).

Almost surely, 2^872814577782 is an apocalyptic number.

872814577782 is an abundant number, since it is smaller than the sum of its proper divisors (1126555652490).

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

872814577782 is a wasteful number, since it uses less digits than its factorization.

872814577782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45473772.

The product of its digits is 98344960, while the sum is 66.

The spelling of 872814577782 in words is "eight hundred seventy-two billion, eight hundred fourteen million, five hundred seventy-seven thousand, seven hundred eighty-two".