72698680659 has 16 divisors (see below), whose sum is σ = 108601470720. Its totient is φ = 42869000160.

The previous prime is 72698680651. The next prime is 72698680687. The reversal of 72698680659 is 95608689627.

It is not a de Polignac number, because 72698680659 - 2³ = 72698680651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72698680659.

It is not an unprimeable number, because it can be changed into a prime (72698680651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29768919 + ... + 29771360.

It is an arithmetic number, because the mean of its divisors is an integer number (6787591920).

Almost surely, 2^72698680659 is an apocalyptic number.

72698680659 is a deficient number, since it is larger than the sum of its proper divisors (35902790061).

72698680659 is a wasteful number, since it uses less digits than its factorization.

72698680659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59540330.

The product of its (nonzero) digits is 78382080, while the sum is 66.

It can be divided in two parts, 72698 and 680659, that added together give a palindrome (753357).

The spelling of 72698680659 in words is "seventy-two billion, six hundred ninety-eight million, six hundred eighty thousand, six hundred fifty-nine".