72300128504 has 32 divisors (see below), whose sum is σ = 144125788320. Its totient is φ = 33925896576.

The previous prime is 72300128501. The next prime is 72300128507. The reversal of 72300128504 is 40582100327.

It is an interprime number because it is at equal distance from previous prime (72300128501) and next prime (72300128507).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72300128501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3697187 + ... + 3716690.

It is an arithmetic number, because the mean of its divisors is an integer number (4503930885).

Almost surely, 2^72300128504 is an apocalyptic number.

It is an amenable number.

72300128504 is a deficient number, since it is larger than the sum of its proper divisors (71825659816).

72300128504 is a wasteful number, since it uses less digits than its factorization.

72300128504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7413959 (or 7413955 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 72300128504 in words is "seventy-two billion, three hundred million, one hundred twenty-eight thousand, five hundred four".