2118839770 has 32 divisors (see below), whose sum is σ = 3984422400. Its totient is φ = 810304320.

The previous prime is 2118839753. The next prime is 2118839809. The reversal of 2118839770 is 779388112.

It is a self number, because there is not a number n which added to its sum of digits gives 2118839770.

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, 15445 + ... + 66904.

It is an arithmetic number, because the mean of its divisors is an integer number (124513200).

Almost surely, 2^2118839770 is an apocalyptic number.

2118839770 is a deficient number, since it is larger than the sum of its proper divisors (1865582630).

2118839770 is a wasteful number, since it uses less digits than its factorization.

2118839770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82470.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 2118839770 is about 46030.8567159031. The cubic root of 2118839770 is about 1284.3972646038.

The spelling of 2118839770 in words is "two billion, one hundred eighteen million, eight hundred thirty-nine thousand, seven hundred seventy".