2149564488 has 16 divisors (see below), whose sum is σ = 5373911280. Its totient is φ = 716521488.

The previous prime is 2149564481. The next prime is 2149564489. The reversal of 2149564488 is 8844659412.

It is a self number, because there is not a number n which added to its sum of digits gives 2149564488.

It is not an unprimeable number, because it can be changed into a prime (2149564481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44782570 + ... + 44782617.

It is an arithmetic number, because the mean of its divisors is an integer number (335869455).

Almost surely, 2^2149564488 is an apocalyptic number.

It is an amenable number.

2149564488 is an abundant number, since it is smaller than the sum of its proper divisors (3224346792).

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

2149564488 is a wasteful number, since it uses less digits than its factorization.

2149564488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89565196 (or 89565192 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The square root of 2149564488 is about 46363.3959929598. The cubic root of 2149564488 is about 1290.5757276306.

The spelling of 2149564488 in words is "two billion, one hundred forty-nine million, five hundred sixty-four thousand, four hundred eighty-eight".