1918118026 has 16 divisors (see below), whose sum is σ = 3141665280. Its totient is φ = 871058880.

The previous prime is 1918118023. The next prime is 1918118057. The reversal of 1918118026 is 6208118191.

It is a super-2 number, since 2×1918118026² = 7358353523332273352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1918118021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16191 + ... + 64018.

It is an arithmetic number, because the mean of its divisors is an integer number (196354080).

Almost surely, 2^1918118026 is an apocalyptic number.

1918118026 is a deficient number, since it is larger than the sum of its proper divisors (1223547254).

1918118026 is a wasteful number, since it uses less digits than its factorization.

1918118026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81309.

The product of its (nonzero) digits is 6912, while the sum is 37.

The square root of 1918118026 is about 43796.3243434880. The cubic root of 1918118026 is about 1242.4867772102.

The spelling of 1918118026 in words is "one billion, nine hundred eighteen million, one hundred eighteen thousand, twenty-six".