2118692842 has 16 divisors (see below), whose sum is σ = 3650486400. Its totient is φ = 903400848.

The previous prime is 2118692789. The next prime is 2118692879. The reversal of 2118692842 is 2482968112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381342 + ... + 386857.

It is an arithmetic number, because the mean of its divisors is an integer number (228155400).

Almost surely, 2^2118692842 is an apocalyptic number.

2118692842 is a deficient number, since it is larger than the sum of its proper divisors (1531793558).

2118692842 is a wasteful number, since it uses less digits than its factorization.

2118692842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768405.

The product of its digits is 110592, while the sum is 43.

The square root of 2118692842 is about 46029.2607153319. The cubic root of 2118692842 is about 1284.3675756696.

The spelling of 2118692842 in words is "two billion, one hundred eighteen million, six hundred ninety-two thousand, eight hundred forty-two".