12987258118 has 16 divisors (see below), whose sum is σ = 19863255456. Its totient is φ = 6366355840.

The previous prime is 12987258107. The next prime is 12987258143. The reversal of 12987258118 is 81185278921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99255 + ... + 189277.

It is an arithmetic number, because the mean of its divisors is an integer number (1241453466).

Almost surely, 2^12987258118 is an apocalyptic number.

12987258118 is a deficient number, since it is larger than the sum of its proper divisors (6875997338).

12987258118 is a wasteful number, since it uses less digits than its factorization.

12987258118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91439.

The product of its digits is 645120, while the sum is 52.

The spelling of 12987258118 in words is "twelve billion, nine hundred eighty-seven million, two hundred fifty-eight thousand, one hundred eighteen".