2163930889815 has 24 divisors (see below), whose sum is σ = 3787950318048. Its totient is φ = 1142669774400.

The previous prime is 2163930889801. The next prime is 2163930889819. The reversal of 2163930889815 is 5189880393612.

2163930889815 is a `hidden beast` number, since 216 + 39 + 308 + 8 + 9 + 81 + 5 = 666.

It is not a de Polignac number, because 2163930889815 - 2¹⁸ = 2163930627671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163930889819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238051659 + ... + 238060748.

It is an arithmetic number, because the mean of its divisors is an integer number (157831263252).

Almost surely, 2^{2163930889815} is an apocalyptic number.

2163930889815 is a deficient number, since it is larger than the sum of its proper divisors (1624019428233).

2163930889815 is a wasteful number, since it uses less digits than its factorization.

2163930889815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476112519 (or 476112516 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The spelling of 2163930889815 in words is "two trillion, one hundred sixty-three billion, nine hundred thirty million, eight hundred eighty-nine thousand, eight hundred fifteen".