72709330876408 has 128 divisors (see below), whose sum is σ = 151083066240000. Its totient is φ = 32650646814720.

The previous prime is 72709330876327. The next prime is 72709330876409. The reversal of 72709330876408 is 80467803390727.

It is a self number, because there is not a number n which added to its sum of digits gives 72709330876408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72709330876409) 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, 178592598 + ... + 178999258.

It is an arithmetic number, because the mean of its divisors is an integer number (1180336455000).

Almost surely, 2^{72709330876408} is an apocalyptic number.

It is an amenable number.

72709330876408 is an abundant number, since it is smaller than the sum of its proper divisors (78373735363592).

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

72709330876408 is a wasteful number, since it uses less digits than its factorization.

72709330876408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407165 (or 407161 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 64.

The spelling of 72709330876408 in words is "seventy-two trillion, seven hundred nine billion, three hundred thirty million, eight hundred seventy-six thousand, four hundred eight".