72900061188 has 96 divisors (see below), whose sum is σ = 175880170368. Its totient is φ = 23483750400.

The previous prime is 72900061159. The next prime is 72900061219. The reversal of 72900061188 is 88116000927.

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, 82746508 + ... + 82747388.

It is an arithmetic number, because the mean of its divisors is an integer number (1832085108).

Almost surely, 2^72900061188 is an apocalyptic number.

It is an amenable number.

72900061188 is an abundant number, since it is smaller than the sum of its proper divisors (102980109180).

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

72900061188 is a wasteful number, since it uses less digits than its factorization.

72900061188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1971 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 72900061188 in words is "seventy-two billion, nine hundred million, sixty-one thousand, one hundred eighty-eight".