72932840089018 has 64 divisors (see below), whose sum is σ = 135078322901760. Its totient is φ = 28759760612352.

The previous prime is 72932840089009. The next prime is 72932840089049. The reversal of 72932840089018 is 81098004823927.

It is a super-2 number, since 2×72932840089018² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1326530653 + ... + 1326585631.

It is an arithmetic number, because the mean of its divisors is an integer number (2110598795340).

Almost surely, 2^{72932840089018} is an apocalyptic number.

72932840089018 is a deficient number, since it is larger than the sum of its proper divisors (62145482812742).

72932840089018 is a wasteful number, since it uses less digits than its factorization.

72932840089018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78311.

The product of its (nonzero) digits is 13934592, while the sum is 61.

The spelling of 72932840089018 in words is "seventy-two trillion, nine hundred thirty-two billion, eight hundred forty million, eighty-nine thousand, eighteen".