2149172364 has 12 divisors (see below), whose sum is σ = 5014735544. Its totient is φ = 716390784.

The previous prime is 2149172357. The next prime is 2149172387. The reversal of 2149172364 is 4632719412.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89548837 + ... + 89548860.

Almost surely, 2^2149172364 is an apocalyptic number.

It is an amenable number.

2149172364 is an abundant number, since it is smaller than the sum of its proper divisors (2865563180).

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

2149172364 is a wasteful number, since it uses less digits than its factorization.

2149172364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179097704 (or 179097702 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 2149172364 is about 46359.1669899277. The cubic root of 2149172364 is about 1290.4972471609.

The spelling of 2149172364 in words is "two billion, one hundred forty-nine million, one hundred seventy-two thousand, three hundred sixty-four".