18715135270 has 64 divisors (see below), whose sum is σ = 38441511360. Its totient is φ = 6498828288.

The previous prime is 18715135267. The next prime is 18715135331. The reversal of 18715135270 is 7253151781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4172449 + ... + 4176931.

It is an arithmetic number, because the mean of its divisors is an integer number (600648615).

Almost surely, 2^18715135270 is an apocalyptic number.

18715135270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18715135270 is an abundant number, since it is smaller than the sum of its proper divisors (19726376090).

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

18715135270 is a wasteful number, since it uses less digits than its factorization.

18715135270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409.

The product of its (nonzero) digits is 58800, while the sum is 40.

The spelling of 18715135270 in words is "eighteen billion, seven hundred fifteen million, one hundred thirty-five thousand, two hundred seventy".