72994454846523 has 32 divisors (see below), whose sum is σ = 123890667468800. Its totient is φ = 41609133839808.

The previous prime is 72994454846491. The next prime is 72994454846549. The reversal of 72994454846523 is 32564845449927.

72994454846523 is a `hidden beast` number, since 7 + 2 + 9 + 9 + 4 + 4 + 54 + 8 + 46 + 523 = 666.

It is not a de Polignac number, because 72994454846523 - 2⁵ = 72994454846491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72994454841523) 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, 472067011 + ... + 472221612.

It is an arithmetic number, because the mean of its divisors is an integer number (3871583358400).

Almost surely, 2^{72994454846523} is an apocalyptic number.

72994454846523 is a deficient number, since it is larger than the sum of its proper divisors (50896212622277).

72994454846523 is a wasteful number, since it uses less digits than its factorization.

72994454846523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944289048 (or 944289042 counting only the distinct ones).

The product of its digits is 2090188800, while the sum is 72.

The spelling of 72994454846523 in words is "seventy-two trillion, nine hundred ninety-four billion, four hundred fifty-four million, eight hundred forty-six thousand, five hundred twenty-three".