72877202736 has 160 divisors (see below), whose sum is σ = 217282759680. Its totient is φ = 20868959232.

The previous prime is 72877202729. The next prime is 72877202813. The reversal of 72877202736 is 63720277827.

It is a super-2 number, since 2×72877202736² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462405 + ... + 599643.

It is an arithmetic number, because the mean of its divisors is an integer number (1358017248).

Almost surely, 2^72877202736 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 72877202736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108641379840).

72877202736 is an abundant number, since it is smaller than the sum of its proper divisors (144405556944).

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

72877202736 is a wasteful number, since it uses less digits than its factorization.

72877202736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137323 (or 137317 counting only the distinct ones).

The product of its (nonzero) digits is 2765952, while the sum is 51.

The spelling of 72877202736 in words is "seventy-two billion, eight hundred seventy-seven million, two hundred two thousand, seven hundred thirty-six".