72617362144 has 12 divisors (see below), whose sum is σ = 142965431784. Its totient is φ = 36308681056.

The previous prime is 72617362127. The next prime is 72617362157. The reversal of 72617362144 is 44126371627.

It is a super-3 number, since 3×72617362144³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72617362144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1134646252 + ... + 1134646315.

It is an arithmetic number, because the mean of its divisors is an integer number (11913785982).

Almost surely, 2^72617362144 is an apocalyptic number.

It is an amenable number.

72617362144 is a deficient number, since it is larger than the sum of its proper divisors (70348069640).

72617362144 is a wasteful number, since it uses less digits than its factorization.

72617362144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269292577 (or 2269292569 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The spelling of 72617362144 in words is "seventy-two billion, six hundred seventeen million, three hundred sixty-two thousand, one hundred forty-four".