72672322815 has 48 divisors (see below), whose sum is σ = 128157120000. Its totient is φ = 38084769216.

The previous prime is 72672322799. The next prime is 72672322841. The reversal of 72672322815 is 51822327627.

It is not a de Polignac number, because 72672322815 - 2⁴ = 72672322799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7957782 + ... + 7966908.

It is an arithmetic number, because the mean of its divisors is an integer number (2669940000).

Almost surely, 2^72672322815 is an apocalyptic number.

72672322815 is a deficient number, since it is larger than the sum of its proper divisors (55484797185).

72672322815 is a wasteful number, since it uses less digits than its factorization.

72672322815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12196 (or 12193 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The spelling of 72672322815 in words is "seventy-two billion, six hundred seventy-two million, three hundred twenty-two thousand, eight hundred fifteen".