72277529180 has 12 divisors (see below), whose sum is σ = 151782811320. Its totient is φ = 28911011664.

The previous prime is 72277529179. The next prime is 72277529257. The reversal of 72277529180 is 8192577227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806938210 + ... + 1806938249.

It is an arithmetic number, because the mean of its divisors is an integer number (12648567610).

Almost surely, 2^72277529180 is an apocalyptic number.

It is an amenable number.

72277529180 is an abundant number, since it is smaller than the sum of its proper divisors (79505282140).

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

72277529180 is a wasteful number, since it uses less digits than its factorization.

72277529180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613876468 (or 3613876466 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 50.

The spelling of 72277529180 in words is "seventy-two billion, two hundred seventy-seven million, five hundred twenty-nine thousand, one hundred eighty".