72931280930 has 32 divisors (see below), whose sum is σ = 141555980160. Its totient is φ = 26963038080.

The previous prime is 72931280893. The next prime is 72931280963. The reversal of 72931280930 is 3908213927.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4673294 + ... + 4688873.

It is an arithmetic number, because the mean of its divisors is an integer number (4423624380).

Almost surely, 2^72931280930 is an apocalyptic number.

72931280930 is a deficient number, since it is larger than the sum of its proper divisors (68624699230).

72931280930 is a wasteful number, since it uses less digits than its factorization.

72931280930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9362234.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 72931280930 in words is "seventy-two billion, nine hundred thirty-one million, two hundred eighty thousand, nine hundred thirty".