2118793563 has 24 divisors (see below), whose sum is σ = 3195644400. Its totient is φ = 1351057344.

The previous prime is 2118793529. The next prime is 2118793571. The reversal of 2118793563 is 3653978112.

2118793563 is a `hidden beast` number, since 2 + 1 + 1 + 87 + 9 + 3 + 563 = 666.

It is not a de Polignac number, because 2118793563 - 2⁸ = 2118793307 is a prime.

It is a super-2 number, since 2×2118793563² = 8978572325220469938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2118793513) 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, 10008 + ... + 65861.

It is an arithmetic number, because the mean of its divisors is an integer number (133151850).

Almost surely, 2^2118793563 is an apocalyptic number.

2118793563 is a deficient number, since it is larger than the sum of its proper divisors (1076850837).

2118793563 is a wasteful number, since it uses less digits than its factorization.

2118793563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76011 (or 76008 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 2118793563 is about 46030.3547998492. The cubic root of 2118793563 is about 1284.3879279570.

The spelling of 2118793563 in words is "two billion, one hundred eighteen million, seven hundred ninety-three thousand, five hundred sixty-three".