72310336553 has 96 divisors (see below), whose sum is σ = 101666611200. Its totient is φ = 49911469056.

The previous prime is 72310336541. The next prime is 72310336573. The reversal of 72310336553 is 35563301327.

It is a happy number.

It is not a de Polignac number, because 72310336553 - 2⁴ = 72310336537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72310336513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23483468 + ... + 23486546.

It is an arithmetic number, because the mean of its divisors is an integer number (1059027200).

Almost surely, 2^72310336553 is an apocalyptic number.

It is an amenable number.

72310336553 is a deficient number, since it is larger than the sum of its proper divisors (29356274647).

72310336553 is a wasteful number, since it uses less digits than its factorization.

72310336553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199 (or 3182 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 38.

The spelling of 72310336553 in words is "seventy-two billion, three hundred ten million, three hundred thirty-six thousand, five hundred fifty-three".