72761237715 has 16 divisors (see below), whose sum is σ = 118057671936. Its totient is φ = 38259429600.

The previous prime is 72761237707. The next prime is 72761237761. The reversal of 72761237715 is 51773216727.

It is not a de Polignac number, because 72761237715 - 2³ = 72761237707 is a prime.

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, 34159141 + ... + 34161270.

It is an arithmetic number, because the mean of its divisors is an integer number (7378604496).

Almost surely, 2^72761237715 is an apocalyptic number.

72761237715 is a deficient number, since it is larger than the sum of its proper divisors (45296434221).

72761237715 is a wasteful number, since it uses less digits than its factorization.

72761237715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68320490.

The product of its digits is 864360, while the sum is 48.

The spelling of 72761237715 in words is "seventy-two billion, seven hundred sixty-one million, two hundred thirty-seven thousand, seven hundred fifteen".