2118768774 has 32 divisors (see below), whose sum is σ = 4465532160. Its totient is φ = 668340000.

The previous prime is 2118768737. The next prime is 2118768791. The reversal of 2118768774 is 4778678112.

It is a super-2 number, since 2×2118768774² = 8978362235354926152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97399 + ... + 117149.

It is an arithmetic number, because the mean of its divisors is an integer number (139547880).

Almost surely, 2^2118768774 is an apocalyptic number.

2118768774 is an abundant number, since it is smaller than the sum of its proper divisors (2346763386).

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

2118768774 is a wasteful number, since it uses less digits than its factorization.

2118768774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20716.

The product of its digits is 1053696, while the sum is 51.

The square root of 2118768774 is about 46030.0855310959. The cubic root of 2118768774 is about 1284.3829190033.

The spelling of 2118768774 in words is "two billion, one hundred eighteen million, seven hundred sixty-eight thousand, seven hundred seventy-four".