18809801152 has 28 divisors (see below), whose sum is σ = 37534245480. Its totient is φ = 9352353536.

The previous prime is 18809801107. The next prime is 18809801161. The reversal of 18809801152 is 25110890881.

It is a junction number, because it is equal to n+sod(n) for n = 18809801099 and 18809801108.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 809503 + ... + 832414.

Almost surely, 2^18809801152 is an apocalyptic number.

It is an amenable number.

18809801152 is a deficient number, since it is larger than the sum of its proper divisors (18724444328).

18809801152 is a wasteful number, since it uses less digits than its factorization.

18809801152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642108 (or 1642098 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 43.

The spelling of 18809801152 in words is "eighteen billion, eight hundred nine million, eight hundred one thousand, one hundred fifty-two".