72614451634 has 16 divisors (see below), whose sum is σ = 109033923096. Its totient is φ = 36269833600.

The previous prime is 72614451619. The next prime is 72614451641. The reversal of 72614451634 is 43615441627.

It can be written as a sum of positive squares in 4 ways, for example, as 71200917225 + 1413534409 = 266835^2 + 37597^2 .

It is a super-2 number, since 2×72614451634² (a number of 23 digits) contains 22 as substring.

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, 10736814 + ... + 10743574.

Almost surely, 2^72614451634 is an apocalyptic number.

72614451634 is a deficient number, since it is larger than the sum of its proper divisors (36419471462).

72614451634 is a wasteful number, since it uses less digits than its factorization.

72614451634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11501.

The product of its digits is 483840, while the sum is 43.

The spelling of 72614451634 in words is "seventy-two billion, six hundred fourteen million, four hundred fifty-one thousand, six hundred thirty-four".