2156483888 has 80 divisors (see below), whose sum is σ = 4852293600. Its totient is φ = 919848960.

The previous prime is 2156483843. The next prime is 2156483891. The reversal of 2156483888 is 8883846512.

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, 155378 + ... + 168686.

It is an arithmetic number, because the mean of its divisors is an integer number (60653670).

Almost surely, 2^2156483888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2156483888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2426146800).

2156483888 is an abundant number, since it is smaller than the sum of its proper divisors (2695809712).

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

2156483888 is a wasteful number, since it uses less digits than its factorization.

2156483888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13390 (or 13384 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 53.

The square root of 2156483888 is about 46437.9574055535. The cubic root of 2156483888 is about 1291.9590225576.

The spelling of 2156483888 in words is "two billion, one hundred fifty-six million, four hundred eighty-three thousand, eight hundred eighty-eight".