2153986764 has 48 divisors (see below), whose sum is σ = 5259233280. Its totient is φ = 685307520.

The previous prime is 2153986741. The next prime is 2153986781. The reversal of 2153986764 is 4676893512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12504 + ... + 66815.

It is an arithmetic number, because the mean of its divisors is an integer number (109567360).

Almost surely, 2^2153986764 is an apocalyptic number.

It is an amenable number.

2153986764 is an abundant number, since it is smaller than the sum of its proper divisors (3105246516).

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

2153986764 is a wasteful number, since it uses less digits than its factorization.

2153986764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79430 (or 79428 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 2153986764 is about 46411.0629483963. The cubic root of 2153986764 is about 1291.4601506105.

The spelling of 2153986764 in words is "two billion, one hundred fifty-three million, nine hundred eighty-six thousand, seven hundred sixty-four".