72388796145 has 16 divisors (see below), whose sum is σ = 115826114112. Its totient is φ = 38606011200.

The previous prime is 72388796063. The next prime is 72388796147. The reversal of 72388796145 is 54169788327.

It is a de Polignac number, because none of the positive numbers 2^k-72388796145 is a prime.

It is a super-2 number, since 2×72388796145² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72388796147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483795 + ... + 615495.

It is an arithmetic number, because the mean of its divisors is an integer number (7239132132).

Almost surely, 2^72388796145 is an apocalyptic number.

It is an amenable number.

72388796145 is a deficient number, since it is larger than the sum of its proper divisors (43437317967).

72388796145 is a wasteful number, since it uses less digits than its factorization.

72388796145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168352.

The product of its digits is 20321280, while the sum is 60.

The spelling of 72388796145 in words is "seventy-two billion, three hundred eighty-eight million, seven hundred ninety-six thousand, one hundred forty-five".