72436398996912 has 80 divisors (see below), whose sum is σ = 189995132449920. Its totient is φ = 23775715662336.

The previous prime is 72436398996881. The next prime is 72436398996959. The reversal of 72436398996912 is 21969989363427.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3729868 + ... + 12600980.

It is an arithmetic number, because the mean of its divisors is an integer number (2374939155624).

Almost surely, 2^{72436398996912} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72436398996912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94997566224960).

72436398996912 is an abundant number, since it is smaller than the sum of its proper divisors (117558733453008).

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

72436398996912 is a wasteful number, since it uses less digits than its factorization.

72436398996912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8873730 (or 8873724 counting only the distinct ones).

The product of its digits is 1904684544, while the sum is 78.

The spelling of 72436398996912 in words is "seventy-two trillion, four hundred thirty-six billion, three hundred ninety-eight million, nine hundred ninety-six thousand, nine hundred twelve".