72750721212366 has 64 divisors (see below), whose sum is σ = 148032920141568. Its totient is φ = 23831467482368.

The previous prime is 72750721212349. The next prime is 72750721212397. The reversal of 72750721212366 is 66321212705727.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 484274221 + ... + 484424423.

It is an arithmetic number, because the mean of its divisors is an integer number (2313014377212).

Almost surely, 2^{72750721212366} is an apocalyptic number.

72750721212366 is an abundant number, since it is smaller than the sum of its proper divisors (75282198929202).

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

72750721212366 is a wasteful number, since it uses less digits than its factorization.

72750721212366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155425.

The product of its (nonzero) digits is 2963520, while the sum is 51.

The spelling of 72750721212366 in words is "seventy-two trillion, seven hundred fifty billion, seven hundred twenty-one million, two hundred twelve thousand, three hundred sixty-six".