72575979107 has 4 divisors (see below), whose sum is σ = 72587987136. Its totient is φ = 72563971080.

The previous prime is 72575979053. The next prime is 72575979149. The reversal of 72575979107 is 70197957527.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72575979107 - 2²⁰ = 72574930531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72575979197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5994944 + ... + 6007037.

It is an arithmetic number, because the mean of its divisors is an integer number (18146996784).

Almost surely, 2^72575979107 is an apocalyptic number.

72575979107 is a deficient number, since it is larger than the sum of its proper divisors (12008029).

72575979107 is a wasteful number, since it uses less digits than its factorization.

72575979107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12008028.

The product of its (nonzero) digits is 9724050, while the sum is 59.

The spelling of 72575979107 in words is "seventy-two billion, five hundred seventy-five million, nine hundred seventy-nine thousand, one hundred seven".