72394144645816 has 48 divisors (see below), whose sum is σ = 158216928345000. Its totient is φ = 30963885430464.

The previous prime is 72394144645799. The next prime is 72394144645859. The reversal of 72394144645816 is 61854644149327.

It is a congruent number.

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, 184853431 + ... + 185244646.

Almost surely, 2^{72394144645816} is an apocalyptic number.

It is an amenable number.

72394144645816 is an abundant number, since it is smaller than the sum of its proper divisors (85822783699184).

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

72394144645816 is a wasteful number, since it uses less digits than its factorization.

72394144645816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370098596 (or 370098585 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 64.

The spelling of 72394144645816 in words is "seventy-two trillion, three hundred ninety-four billion, one hundred forty-four million, six hundred forty-five thousand, eight hundred sixteen".