72605617130 has 32 divisors (see below), whose sum is σ = 142312291200. Its totient is φ = 26564956992.

The previous prime is 72605617081. The next prime is 72605617193. The reversal of 72605617130 is 3171650627.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 6583022 + ... + 6594041.

It is an arithmetic number, because the mean of its divisors is an integer number (4447259100).

Almost surely, 2^72605617130 is an apocalyptic number.

72605617130 is a deficient number, since it is larger than the sum of its proper divisors (69706674070).

72605617130 is a wasteful number, since it uses less digits than its factorization.

72605617130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13177118.

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 72605617130 in words is "seventy-two billion, six hundred five million, six hundred seventeen thousand, one hundred thirty".