2156746902 has 16 divisors (see below), whose sum is σ = 4313996400. Its totient is φ = 718831872.

The previous prime is 2156746901. The next prime is 2156746931. The reversal of 2156746902 is 2096476512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156746901) 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, 57378 + ... + 87210.

It is an arithmetic number, because the mean of its divisors is an integer number (269624775).

Almost surely, 2^2156746902 is an apocalyptic number.

2156746902 is an abundant number, since it is smaller than the sum of its proper divisors (2157249498).

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

2156746902 is a wasteful number, since it uses less digits than its factorization.

2156746902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41887.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 2156746902 is about 46440.7892051804. The cubic root of 2156746902 is about 1292.0115447054.

The spelling of 2156746902 in words is "two billion, one hundred fifty-six million, seven hundred forty-six thousand, nine hundred two".