2156923602 has 48 divisors (see below), whose sum is σ = 4798842048. Its totient is φ = 699783840.

The previous prime is 2156923589. The next prime is 2156923607. The reversal of 2156923602 is 2063296512.

2156923602 is a `hidden beast` number, since 21 + 5 + 6 + 9 + 23 + 602 = 666.

It is not an unprimeable number, because it can be changed into a prime (2156923607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222027 + ... + 231537.

It is an arithmetic number, because the mean of its divisors is an integer number (99975876).

Almost surely, 2^2156923602 is an apocalyptic number.

2156923602 is an abundant number, since it is smaller than the sum of its proper divisors (2641918446).

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

2156923602 is a wasteful number, since it uses less digits than its factorization.

2156923602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9855 (or 9852 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2156923602 is about 46442.6915886666. The cubic root of 2156923602 is about 1292.0468281231.

The spelling of 2156923602 in words is "two billion, one hundred fifty-six million, nine hundred twenty-three thousand, six hundred two".