2118273264 has 60 divisors (see below), whose sum is σ = 5970928600. Its totient is φ = 701004672.

The previous prime is 2118273263. The next prime is 2118273271. The reversal of 2118273264 is 4623728112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118273263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32899 + ... + 72930.

Almost surely, 2^2118273264 is an apocalyptic number.

2118273264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2118273264 is an abundant number, since it is smaller than the sum of its proper divisors (3852655336).

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

2118273264 is a wasteful number, since it uses less digits than its factorization.

2118273264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105982 (or 105973 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2118273264 is about 46024.7027584101. The cubic root of 2118273264 is about 1284.2827862898.

The spelling of 2118273264 in words is "two billion, one hundred eighteen million, two hundred seventy-three thousand, two hundred sixty-four".