2153966884 has 12 divisors (see below), whose sum is σ = 3769846108. Its totient is φ = 1076868000.

The previous prime is 2153966873. The next prime is 2153966887. The reversal of 2153966884 is 4886693512.

It can be written as a sum of positive squares in 2 ways, for example, as 1950105600 + 203861284 = 44160^2 + 14278^2 .

It is not an unprimeable number, because it can be changed into a prime (2153966887) 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, 23794 + ... + 69814.

Almost surely, 2^2153966884 is an apocalyptic number.

It is an amenable number.

2153966884 is a deficient number, since it is larger than the sum of its proper divisors (1615879224).

2153966884 is a wasteful number, since it uses less digits than its factorization.

2153966884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57726 (or 57724 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 52.

The square root of 2153966884 is about 46410.8487748285. The cubic root of 2153966884 is about 1291.4561774653.

The spelling of 2153966884 in words is "two billion, one hundred fifty-three million, nine hundred sixty-six thousand, eight hundred eighty-four".