2115183690 has 96 divisors (see below), whose sum is σ = 5849372880. Its totient is φ = 528463872.

The previous prime is 2115183677. The next prime is 2115183737. The reversal of 2115183690 is 963815112.

2115183690 is a `hidden beast` number, since 21 + 1 + 518 + 36 + 90 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1417748409 + 697435281 = 37653^2 + 26409^2 .

It is a super-2 number, since 2×2115183690² = 8948004084884032200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 347352 + ... + 353388.

Almost surely, 2^2115183690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115183690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2924686440).

2115183690 is an abundant number, since it is smaller than the sum of its proper divisors (3734189190).

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

2115183690 is a wasteful number, since it uses less digits than its factorization.

2115183690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6296 (or 6293 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 2115183690 is about 45991.1262093026. The cubic root of 2115183690 is about 1283.6580923568.

The spelling of 2115183690 in words is "two billion, one hundred fifteen million, one hundred eighty-three thousand, six hundred ninety".