18807475350 has 48 divisors (see below), whose sum is σ = 47634951168. Its totient is φ = 4908615840.

The previous prime is 18807475331. The next prime is 18807475363. The reversal of 18807475350 is 5357470881.

It is a happy number.

It is a super-2 number, since 2×18807475350² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18807475350.

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 23 ways as a sum of consecutive naturals, for example, 1326814 + ... + 1340913.

It is an arithmetic number, because the mean of its divisors is an integer number (992394816).

Almost surely, 2^18807475350 is an apocalyptic number.

18807475350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18807475350 is an abundant number, since it is smaller than the sum of its proper divisors (28827475818).

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

18807475350 is a wasteful number, since it uses less digits than its factorization.

18807475350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667789 (or 2667784 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 18807475350 in words is "eighteen billion, eight hundred seven million, four hundred seventy-five thousand, three hundred fifty".