7920925770 has 64 divisors (see below), whose sum is σ = 21187889280. Its totient is φ = 1883363328.

The previous prime is 7920925769. The next prime is 7920925807. The reversal of 7920925770 is 775290297.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399027 + ... + 418406.

It is an arithmetic number, because the mean of its divisors is an integer number (331060770).

Almost surely, 2^7920925770 is an apocalyptic number.

7920925770 is an abundant number, since it is smaller than the sum of its proper divisors (13266963510).

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

7920925770 is a wasteful number, since it uses less digits than its factorization.

7920925770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817479.

The product of its (nonzero) digits is 555660, while the sum is 48.

The square root of 7920925770 is about 88999.5829765511. The cubic root of 7920925770 is about 1993.3886499403.

The spelling of 7920925770 in words is "seven billion, nine hundred twenty million, nine hundred twenty-five thousand, seven hundred seventy".