18789348810 has 32 divisors (see below), whose sum is σ = 45254935872. Its totient is φ = 4992659840.

The previous prime is 18789348803. The next prime is 18789348811. The reversal of 18789348810 is 1884398781.

It is a super-2 number, since 2×18789348810² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18789348811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1106004 + ... + 1122863.

It is an arithmetic number, because the mean of its divisors is an integer number (1414216746).

Almost surely, 2^18789348810 is an apocalyptic number.

18789348810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18789348810 is an abundant number, since it is smaller than the sum of its proper divisors (26465587062).

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

18789348810 is a wasteful number, since it uses less digits than its factorization.

18789348810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229158.

The product of its (nonzero) digits is 3096576, while the sum is 57.

The spelling of 18789348810 in words is "eighteen billion, seven hundred eighty-nine million, three hundred forty-eight thousand, eight hundred ten".