72930920807 has 4 divisors (see below), whose sum is σ = 72954579720. Its totient is φ = 72907261896.

The previous prime is 72930920801. The next prime is 72930920833. The reversal of 72930920807 is 70802903927.

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 72930920807 - 2⁶ = 72930920743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72930920801) 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, 11824832 + ... + 11830997.

It is an arithmetic number, because the mean of its divisors is an integer number (18238644930).

Almost surely, 2^72930920807 is an apocalyptic number.

72930920807 is a deficient number, since it is larger than the sum of its proper divisors (23658913).

72930920807 is a wasteful number, since it uses less digits than its factorization.

72930920807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23658912.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 72930920807 in words is "seventy-two billion, nine hundred thirty million, nine hundred twenty thousand, eight hundred seven".