72018984980 has 12 divisors (see below), whose sum is σ = 151239868500. Its totient is φ = 28807593984.

The previous prime is 72018984913. The next prime is 72018985001. The reversal of 72018984980 is 8948981027.

It can be written as a sum of positive squares in 2 ways, for example, as 11855725456 + 60163259524 = 108884^2 + 245282^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1800474605 + ... + 1800474644.

It is an arithmetic number, because the mean of its divisors is an integer number (12603322375).

Almost surely, 2^72018984980 is an apocalyptic number.

It is an amenable number.

72018984980 is an abundant number, since it is smaller than the sum of its proper divisors (79220883520).

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

72018984980 is a wasteful number, since it uses less digits than its factorization.

72018984980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600949258 (or 3600949256 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 56.

The spelling of 72018984980 in words is "seventy-two billion, eighteen million, nine hundred eighty-four thousand, nine hundred eighty".