18512532514 has 64 divisors (see below), whose sum is σ = 33973862400. Its totient is φ = 7548026640.

The previous prime is 18512532509. The next prime is 18512532557. The reversal of 18512532514 is 41523521581.

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 31 ways as a sum of consecutive naturals, for example, 3010527 + ... + 3016669.

It is an arithmetic number, because the mean of its divisors is an integer number (530841600).

Almost surely, 2^18512532514 is an apocalyptic number.

18512532514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18512532514 is a deficient number, since it is larger than the sum of its proper divisors (15461329886).

18512532514 is a wasteful number, since it uses less digits than its factorization.

18512532514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380 (or 6366 counting only the distinct ones).

The product of its digits is 48000, while the sum is 37.

The spelling of 18512532514 in words is "eighteen billion, five hundred twelve million, five hundred thirty-two thousand, five hundred fourteen".