72738084718 has 32 divisors (see below), whose sum is σ = 118017821376. Its totient is φ = 33423763968.

The previous prime is 72738084709. The next prime is 72738084721. The reversal of 72738084718 is 81748083727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6504580 + ... + 6515752.

It is an arithmetic number, because the mean of its divisors is an integer number (3688056918).

Almost surely, 2^72738084718 is an apocalyptic number.

72738084718 is a deficient number, since it is larger than the sum of its proper divisors (45279736658).

72738084718 is a wasteful number, since it uses less digits than its factorization.

72738084718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12268.

The product of its (nonzero) digits is 4214784, while the sum is 55.

Subtracting 72738084718 from its reverse (81748083727), we obtain a palindrome (9009999009).

The spelling of 72738084718 in words is "seventy-two billion, seven hundred thirty-eight million, eighty-four thousand, seven hundred eighteen".