72549675458 has 16 divisors (see below), whose sum is σ = 117358657920. Its totient is φ = 33437886096.

The previous prime is 72549675433. The next prime is 72549675469. The reversal of 72549675458 is 85457694527.

It is a super-2 number, since 2×72549675458² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72549675458.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1921760 + ... + 1959147.

It is an arithmetic number, because the mean of its divisors is an integer number (7334916120).

Almost surely, 2^72549675458 is an apocalyptic number.

72549675458 is a deficient number, since it is larger than the sum of its proper divisors (44808982462).

72549675458 is a wasteful number, since it uses less digits than its factorization.

72549675458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881641.

The product of its digits is 84672000, while the sum is 62.

The spelling of 72549675458 in words is "seventy-two billion, five hundred forty-nine million, six hundred seventy-five thousand, four hundred fifty-eight".