72736138599 has 32 divisors (see below), whose sum is σ = 104922516480. Its totient is φ = 44674561152.

The previous prime is 72736138591. The next prime is 72736138621. The reversal of 72736138599 is 99583163727.

It is not a de Polignac number, because 72736138599 - 2³ = 72736138591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72736138591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334137 + ... + 507069.

It is an arithmetic number, because the mean of its divisors is an integer number (3278828640).

Almost surely, 2^72736138599 is an apocalyptic number.

72736138599 is a deficient number, since it is larger than the sum of its proper divisors (32186377881).

72736138599 is a wasteful number, since it uses less digits than its factorization.

72736138599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173159.

The product of its digits is 17146080, while the sum is 60.

The spelling of 72736138599 in words is "seventy-two billion, seven hundred thirty-six million, one hundred thirty-eight thousand, five hundred ninety-nine".