72535577434 has 24 divisors (see below), whose sum is σ = 114669917280. Its totient is φ = 34347231600.

The previous prime is 72535577419. The next prime is 72535577479. The reversal of 72535577434 is 43477553527.

It is a super-2 number, since 2×72535577434² (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 11 ways as a sum of consecutive naturals, for example, 391957 + ... + 546535.

It is an arithmetic number, because the mean of its divisors is an integer number (4777913220).

Almost surely, 2^72535577434 is an apocalyptic number.

72535577434 is a deficient number, since it is larger than the sum of its proper divisors (42134339846).

72535577434 is a wasteful number, since it uses less digits than its factorization.

72535577434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154806 (or 154705 counting only the distinct ones).

The product of its digits is 12348000, while the sum is 52.

The spelling of 72535577434 in words is "seventy-two billion, five hundred thirty-five million, five hundred seventy-seven thousand, four hundred thirty-four".