918181819092 has 24 divisors (see below), whose sum is σ = 2142439743136. Its totient is φ = 306058392288.

The previous prime is 918181819091. The next prime is 918181819099. The reversal of 918181819092 is 290918181819.

It is a super-2 number, since 2×918181819092² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918181819091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3070278 + ... + 3356034.

Almost surely, 2^918181819092 is an apocalyptic number.

It is an amenable number.

918181819092 is an abundant number, since it is smaller than the sum of its proper divisors (1224257924044).

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

918181819092 is a wasteful number, since it uses less digits than its factorization.

918181819092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553527 (or 553525 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 57.

The spelling of 918181819092 in words is "nine hundred eighteen billion, one hundred eighty-one million, eight hundred nineteen thousand, ninety-two".