72152321494 has 16 divisors (see below), whose sum is σ = 122138727120. Its totient is φ = 31665595360.

The previous prime is 72152321473. The next prime is 72152321509. The reversal of 72152321494 is 49412325127.

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, 56545069 + ... + 56546344.

It is an arithmetic number, because the mean of its divisors is an integer number (7633670445).

Almost surely, 2^72152321494 is an apocalyptic number.

72152321494 is a deficient number, since it is larger than the sum of its proper divisors (49986405626).

72152321494 is a wasteful number, since it uses less digits than its factorization.

72152321494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113091455.

The product of its digits is 120960, while the sum is 40.

The spelling of 72152321494 in words is "seventy-two billion, one hundred fifty-two million, three hundred twenty-one thousand, four hundred ninety-four".