7922920812 has 24 divisors (see below), whose sum is σ = 18677403696. Its totient is φ = 2613746688.

The previous prime is 7922920807. The next prime is 7922920813. The reversal of 7922920812 is 2180292297.

It is not an unprimeable number, because it can be changed into a prime (7922920813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3402153 + ... + 3404480.

It is an arithmetic number, because the mean of its divisors is an integer number (778225154).

Almost surely, 2^7922920812 is an apocalyptic number.

It is an amenable number.

7922920812 is an abundant number, since it is smaller than the sum of its proper divisors (10754482884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7922920812 is a wasteful number, since it uses less digits than its factorization.

7922920812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806737 (or 6806735 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 7922920812 is about 89010.7904245322. The cubic root of 7922920812 is about 1993.5559940259. Note that the first 3 decimals are identical.

The spelling of 7922920812 in words is "seven billion, nine hundred twenty-two million, nine hundred twenty thousand, eight hundred twelve".