2656973906 has 8 divisors (see below), whose sum is σ = 3991006080. Its totient is φ = 1326638548.

The previous prime is 2656973897. The next prime is 2656973941. The reversal of 2656973906 is 6093796562.

2656973906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922406 + ... + 925281.

It is an arithmetic number, because the mean of its divisors is an integer number (498875760).

Almost surely, 2^2656973906 is an apocalyptic number.

2656973906 is a deficient number, since it is larger than the sum of its proper divisors (1334032174).

2656973906 is a wasteful number, since it uses less digits than its factorization.

2656973906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848408.

The product of its (nonzero) digits is 3674160, while the sum is 53.

The square root of 2656973906 is about 51545.8427615652. The cubic root of 2656973906 is about 1385.0403627018.

The spelling of 2656973906 in words is "two billion, six hundred fifty-six million, nine hundred seventy-three thousand, nine hundred six".