72011827908 has 36 divisors (see below), whose sum is σ = 184523465308. Its totient is φ = 23675120640.

The previous prime is 72011827837. The next prime is 72011827919. The reversal of 72011827908 is 80972811027.

It can be written as a sum of positive squares in 2 ways, for example, as 53741439684 + 18270388224 = 231822^2 + 135168^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13698253 + ... + 13703508.

Almost surely, 2^72011827908 is an apocalyptic number.

It is an amenable number.

72011827908 is an abundant number, since it is smaller than the sum of its proper divisors (112511637400).

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

72011827908 is a wasteful number, since it uses less digits than its factorization.

72011827908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27401844 (or 27401839 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The spelling of 72011827908 in words is "seventy-two billion, eleven million, eight hundred twenty-seven thousand, nine hundred eight".