72918403514 has 24 divisors (see below), whose sum is σ = 121746838080. Its totient is φ = 32725166760.

The previous prime is 72918403507. The next prime is 72918403517. The reversal of 72918403514 is 41530481927.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72918403517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1887944 + ... + 1926179.

It is an arithmetic number, because the mean of its divisors is an integer number (5072784920).

Almost surely, 2^72918403514 is an apocalyptic number.

72918403514 is a deficient number, since it is larger than the sum of its proper divisors (48828434566).

72918403514 is a wasteful number, since it uses less digits than its factorization.

72918403514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3814226 (or 3814215 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 72918403514 in words is "seventy-two billion, nine hundred eighteen million, four hundred three thousand, five hundred fourteen".