72733471134 has 16 divisors (see below), whose sum is σ = 146156361600. Its totient is φ = 24129587160.

The previous prime is 72733471039. The next prime is 72733471171. The reversal of 72733471134 is 43117433727.

It is a super-2 number, since 2×72733471134² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 28724434 + ... + 28726965.

It is an arithmetic number, because the mean of its divisors is an integer number (9134772600).

Almost surely, 2^72733471134 is an apocalyptic number.

72733471134 is an abundant number, since it is smaller than the sum of its proper divisors (73422890466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72733471134 is a wasteful number, since it uses less digits than its factorization.

72733471134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57451615.

The product of its digits is 296352, while the sum is 42.

The spelling of 72733471134 in words is "seventy-two billion, seven hundred thirty-three million, four hundred seventy-one thousand, one hundred thirty-four".