872540023408 has 40 divisors (see below), whose sum is σ = 1771126085120. Its totient is φ = 415895325120.

The previous prime is 872540023321. The next prime is 872540023423. The reversal of 872540023408 is 804320045278.

It is a super-2 number, since 2×872540023408² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13094778 + ... + 13161241.

It is an arithmetic number, because the mean of its divisors is an integer number (44278152128).

Almost surely, 2^872540023408 is an apocalyptic number.

It is an amenable number.

872540023408 is an abundant number, since it is smaller than the sum of its proper divisors (898586061712).

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

872540023408 is a wasteful number, since it uses less digits than its factorization.

872540023408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26256125 (or 26256119 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

The spelling of 872540023408 in words is "eight hundred seventy-two billion, five hundred forty million, twenty-three thousand, four hundred eight".