18106710840 has 80 divisors (see below), whose sum is σ = 60858677880. Its totient is φ = 4828455360.

The previous prime is 18106710823. The next prime is 18106710841. The reversal of 18106710840 is 4801760181.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 18106710795 and 18106710804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18106710841) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2791006 + ... + 2797485.

Almost surely, 2^18106710840 is an apocalyptic number.

18106710840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18106710840 is an abundant number, since it is smaller than the sum of its proper divisors (42751967040).

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

18106710840 is a wasteful number, since it uses less digits than its factorization.

18106710840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5588514 (or 5588501 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The spelling of 18106710840 in words is "eighteen billion, one hundred six million, seven hundred ten thousand, eight hundred forty".