2156896895 has 16 divisors (see below), whose sum is σ = 2678922720. Its totient is φ = 1665148800.

The previous prime is 2156896849. The next prime is 2156896919. The reversal of 2156896895 is 5986986512.

2156896895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2156896895 - 2²⁶ = 2089788031 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504065 + ... + 508325.

It is an arithmetic number, because the mean of its divisors is an integer number (167432670).

Almost surely, 2^2156896895 is an apocalyptic number.

2156896895 is a deficient number, since it is larger than the sum of its proper divisors (522025825).

2156896895 is a wasteful number, since it uses less digits than its factorization.

2156896895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786.

The product of its digits is 9331200, while the sum is 59.

The square root of 2156896895 is about 46442.4040613748. The cubic root of 2156896895 is about 1292.0414953988.

The spelling of 2156896895 in words is "two billion, one hundred fifty-six million, eight hundred ninety-six thousand, eight hundred ninety-five".