18957827115 has 16 divisors (see below), whose sum is σ = 33702804000. Its totient is φ = 10110841056.

The previous prime is 18957827039. The next prime is 18957827129. The reversal of 18957827115 is 51172875981.

It is not a de Polignac number, because 18957827115 - 2¹¹ = 18957825067 is a prime.

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, 70214040 + ... + 70214309.

It is an arithmetic number, because the mean of its divisors is an integer number (2106425250).

Almost surely, 2^18957827115 is an apocalyptic number.

18957827115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18957827115 is a deficient number, since it is larger than the sum of its proper divisors (14744976885).

18957827115 is a wasteful number, since it uses less digits than its factorization.

18957827115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140428363 (or 140428357 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 54.

The spelling of 18957827115 in words is "eighteen billion, nine hundred fifty-seven million, eight hundred twenty-seven thousand, one hundred fifteen".