18700943040 has 1120 divisors, whose sum is σ = 79308472320. Its totient is φ = 4138573824.

The previous prime is 18700943033. The next prime is 18700943071. The reversal of 18700943040 is 4034900781.

It is a happy number.

18700943040 is a `hidden beast` number, since 187 + 0 + 0 + 9 + 430 + 40 = 666.

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 = 18700942986 and 18700943004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 147251457 + ... + 147251583.

It is an arithmetic number, because the mean of its divisors is an integer number (70811136).

Almost surely, 2^18700943040 is an apocalyptic number.

18700943040 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 18700943040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39654236160).

18700943040 is an abundant number, since it is smaller than the sum of its proper divisors (60607529280).

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

18700943040 is a wasteful number, since it uses less digits than its factorization.

18700943040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 18700943040 in words is "eighteen billion, seven hundred million, nine hundred forty-three thousand, forty".