2117986896 has 20 divisors (see below), whose sum is σ = 5471466272. Its totient is φ = 705995616.

The previous prime is 2117986883. The next prime is 2117986921. The reversal of 2117986896 is 6986897112.

It is a congruent number.

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, 22062316 + ... + 22062411.

Almost surely, 2^2117986896 is an apocalyptic number.

It is an amenable number.

2117986896 is an abundant number, since it is smaller than the sum of its proper divisors (3353479376).

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

2117986896 is a wasteful number, since it uses less digits than its factorization.

2117986896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44124738 (or 44124732 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 57.

The square root of 2117986896 is about 46021.5916282781. The cubic root of 2117986896 is about 1284.2249098937.

The spelling of 2117986896 in words is "two billion, one hundred seventeen million, nine hundred eighty-six thousand, eight hundred ninety-six".