72597521107 has 8 divisors (see below), whose sum is σ = 74122395984. Its totient is φ = 71088127488.

The previous prime is 72597521053. The next prime is 72597521119. The reversal of 72597521107 is 70112579527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72597521107 - 2⁷ = 72597520979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72597521177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3860838 + ... + 3879595.

It is an arithmetic number, because the mean of its divisors is an integer number (9265299498).

Almost surely, 2^72597521107 is an apocalyptic number.

72597521107 is a deficient number, since it is larger than the sum of its proper divisors (1524874877).

72597521107 is a wasteful number, since it uses less digits than its factorization.

72597521107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7740629.

The product of its (nonzero) digits is 308700, while the sum is 46.

The spelling of 72597521107 in words is "seventy-two billion, five hundred ninety-seven million, five hundred twenty-one thousand, one hundred seven".