18714587870 has 32 divisors (see below), whose sum is σ = 38910334176. Its totient is φ = 6404992000.

The previous prime is 18714587867. The next prime is 18714587891. The reversal of 18714587870 is 7878541781.

It is a super-2 number, since 2×18714587870² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5002031 + ... + 5005770.

It is an arithmetic number, because the mean of its divisors is an integer number (1215947943).

Almost surely, 2^18714587870 is an apocalyptic number.

18714587870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18714587870 is an abundant number, since it is smaller than the sum of its proper divisors (20195746306).

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

18714587870 is a wasteful number, since it uses less digits than its factorization.

18714587870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007836.

The product of its (nonzero) digits is 3512320, while the sum is 56.

The spelling of 18714587870 in words is "eighteen billion, seven hundred fourteen million, five hundred eighty-seven thousand, eight hundred seventy".