2151594944 has 14 divisors (see below), whose sum is σ = 4269571344. Its totient is φ = 1075797440.

The previous prime is 2151594917. The next prime is 2151594967. The reversal of 2151594944 is 4494951512.

It is a junction number, because it is equal to n+sod(n) for n = 2151594895 and 2151594904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16809272 + ... + 16809399.

Almost surely, 2^2151594944 is an apocalyptic number.

It is an amenable number.

2151594944 is a deficient number, since it is larger than the sum of its proper divisors (2117976400).

2151594944 is an equidigital number, since it uses as much as digits as its factorization.

2151594944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33618683 (or 33618673 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 2151594944 is about 46385.2880124722. The cubic root of 2151594944 is about 1290.9819545030.

The spelling of 2151594944 in words is "two billion, one hundred fifty-one million, five hundred ninety-four thousand, nine hundred forty-four".