18700942570 has 16 divisors (see below), whose sum is σ = 33671690280. Its totient is φ = 7478156224.

The previous prime is 18700942553. The next prime is 18700942607. The reversal of 18700942570 is 7524900781.

It can be written as a sum of positive squares in 4 ways, for example, as 17686074121 + 1014868449 = 132989^2 + 31857^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242017 + ... + 309796.

Almost surely, 2^18700942570 is an apocalyptic number.

18700942570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18700942570 is a deficient number, since it is larger than the sum of its proper divisors (14970747710).

18700942570 is a wasteful number, since it uses less digits than its factorization.

18700942570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555209.

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 18700942570 in words is "eighteen billion, seven hundred million, nine hundred forty-two thousand, five hundred seventy".