72638445210 has 64 divisors (see below), whose sum is σ = 184214753280. Its totient is φ = 18293520960.

The previous prime is 72638445199. The next prime is 72638445221. The reversal of 72638445210 is 1254483627.

It is an interprime number because it is at equal distance from previous prime (72638445199) and next prime (72638445221).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 611776 + ... + 720795.

It is an arithmetic number, because the mean of its divisors is an integer number (2878355520).

Almost surely, 2^72638445210 is an apocalyptic number.

72638445210 is an abundant number, since it is smaller than the sum of its proper divisors (111576308070).

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

72638445210 is a wasteful number, since it uses less digits than its factorization.

72638445210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332683.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 72638445210 in words is "seventy-two billion, six hundred thirty-eight million, four hundred forty-five thousand, two hundred ten".