72388614631 has 8 divisors (see below), whose sum is σ = 74967140864. Its totient is φ = 69825301560.

The previous prime is 72388614629. The next prime is 72388614667. The reversal of 72388614631 is 13641688327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72388614631 - 2¹ = 72388614629 is a prime.

It is a super-2 number, since 2×72388614631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72388614131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3793605 + ... + 3812638.

It is an arithmetic number, because the mean of its divisors is an integer number (9370892608).

Almost surely, 2^72388614631 is an apocalyptic number.

72388614631 is a deficient number, since it is larger than the sum of its proper divisors (2578526233).

72388614631 is a wasteful number, since it uses less digits than its factorization.

72388614631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7606581.

The product of its digits is 1161216, while the sum is 49.

The spelling of 72388614631 in words is "seventy-two billion, three hundred eighty-eight million, six hundred fourteen thousand, six hundred thirty-one".