72501902344 has 8 divisors (see below), whose sum is σ = 135941066910. Its totient is φ = 36250951168.

The previous prime is 72501902323. The next prime is 72501902351. The reversal of 72501902344 is 44320910527.

It can be written as a sum of positive squares in only one way, i.e., 57011112900 + 15490789444 = 238770^2 + 124462^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4531368889 + ... + 4531368904.

Almost surely, 2^72501902344 is an apocalyptic number.

It is an amenable number.

72501902344 is a deficient number, since it is larger than the sum of its proper divisors (63439164566).

72501902344 is a wasteful number, since it uses less digits than its factorization.

72501902344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9062737799 (or 9062737795 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 72501902344 in words is "seventy-two billion, five hundred one million, nine hundred two thousand, three hundred forty-four".