18700851040 has 96 divisors (see below), whose sum is σ = 46156158720. Its totient is φ = 7146653184.

The previous prime is 18700851019. The next prime is 18700851049. The reversal of 18700851040 is 4015800781.

It is a junction number, because it is equal to n+sod(n) for n = 18700850987 and 18700851005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18700851049) 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, 3747427 + ... + 3752413.

It is an arithmetic number, because the mean of its divisors is an integer number (480793320).

Almost surely, 2^18700851040 is an apocalyptic number.

18700851040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18700851040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23078079360).

18700851040 is an abundant number, since it is smaller than the sum of its proper divisors (27455307680).

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

18700851040 is a wasteful number, since it uses less digits than its factorization.

18700851040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6044 (or 6036 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The spelling of 18700851040 in words is "eighteen billion, seven hundred million, eight hundred fifty-one thousand, forty".