2159794736 has 20 divisors (see below), whose sum is σ = 4565021064. Its totient is φ = 981724800.

The previous prime is 2159794723. The next prime is 2159794739. The reversal of 2159794736 is 6374979512.

It is not an unprimeable number, because it can be changed into a prime (2159794739) 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, 6135605 + ... + 6135956.

Almost surely, 2^2159794736 is an apocalyptic number.

It is an amenable number.

2159794736 is an abundant number, since it is smaller than the sum of its proper divisors (2405226328).

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

2159794736 is a wasteful number, since it uses less digits than its factorization.

2159794736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12271580 (or 12271574 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 53.

The square root of 2159794736 is about 46473.5918129856. The cubic root of 2159794736 is about 1292.6198656959.

The spelling of 2159794736 in words is "two billion, one hundred fifty-nine million, seven hundred ninety-four thousand, seven hundred thirty-six".