72304551473576 has 8 divisors (see below), whose sum is σ = 135571034012970. Its totient is φ = 36152275736784.

The previous prime is 72304551473563. The next prime is 72304551473599. The reversal of 72304551473576 is 67537415540327.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69510137751076 + 2794413722500 = 8337274^2 + 1671650^2 .

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, 4519034467091 + ... + 4519034467106.

Almost surely, 2^{72304551473576} is an apocalyptic number.

It is an amenable number.

72304551473576 is a deficient number, since it is larger than the sum of its proper divisors (63266482539394).

72304551473576 is a wasteful number, since it uses less digits than its factorization.

72304551473576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9038068934203 (or 9038068934199 counting only the distinct ones).

The product of its (nonzero) digits is 74088000, while the sum is 59.

The spelling of 72304551473576 in words is "seventy-two trillion, three hundred four billion, five hundred fifty-one million, four hundred seventy-three thousand, five hundred seventy-six".