1918118792 has 32 divisors (see below), whose sum is σ = 3664288800. Its totient is φ = 941036544.

The previous prime is 1918118777. The next prime is 1918118803. The reversal of 1918118792 is 2978118191.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268823 + ... + 275865.

It is an arithmetic number, because the mean of its divisors is an integer number (114509025).

Almost surely, 2^1918118792 is an apocalyptic number.

It is an amenable number.

1918118792 is a deficient number, since it is larger than the sum of its proper divisors (1746170008).

1918118792 is a wasteful number, since it uses less digits than its factorization.

1918118792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7685 (or 7681 counting only the distinct ones).

The product of its digits is 72576, while the sum is 47.

The square root of 1918118792 is about 43796.3330885132. Note that the first 3 decimals coincide. The cubic root of 1918118792 is about 1242.4869426058.

It can be divided in two parts, 19181 and 18792, that added together give a palindrome (37973).

The spelling of 1918118792 in words is "one billion, nine hundred eighteen million, one hundred eighteen thousand, seven hundred ninety-two".