18808698052 has 12 divisors (see below), whose sum is σ = 33046359696. Its totient is φ = 9366881000.

The previous prime is 18808698011. The next prime is 18808698059. The reversal of 18808698052 is 25089680881.

It is a super-2 number, since 2×18808698052² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18808697984 and 18808698002.

It is not an unprimeable number, because it can be changed into a prime (18808698059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9365878 + ... + 9367885.

It is an arithmetic number, because the mean of its divisors is an integer number (2753863308).

Almost surely, 2^18808698052 is an apocalyptic number.

It is an amenable number.

18808698052 is a deficient number, since it is larger than the sum of its proper divisors (14237661644).

18808698052 is a wasteful number, since it uses less digits than its factorization.

18808698052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18734018 (or 18734016 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 55.

The spelling of 18808698052 in words is "eighteen billion, eight hundred eight million, six hundred ninety-eight thousand, fifty-two".