72639465710 has 64 divisors (see below), whose sum is σ = 151777566720. Its totient is φ = 24514237440.

The previous prime is 72639465683. The next prime is 72639465817. The reversal of 72639465710 is 1756493627.

It is a congruent number.

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, 6893726 + ... + 6904254.

It is an arithmetic number, because the mean of its divisors is an integer number (2371524480).

Almost surely, 2^72639465710 is an apocalyptic number.

72639465710 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72639465710 is an abundant number, since it is smaller than the sum of its proper divisors (79138101010).

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

72639465710 is a wasteful number, since it uses less digits than its factorization.

72639465710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12081.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 72639465710 in words is "seventy-two billion, six hundred thirty-nine million, four hundred sixty-five thousand, seven hundred ten".