12513888888 has 16 divisors (see below), whose sum is σ = 31284722280. Its totient is φ = 4171296288.

The previous prime is 12513888847. The next prime is 12513888973. The reversal of 12513888888 is 88888831521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260705995 + ... + 260706042.

Almost surely, 2^12513888888 is an apocalyptic number.

It is an amenable number.

12513888888 is an abundant number, since it is smaller than the sum of its proper divisors (18770833392).

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

12513888888 is a wasteful number, since it uses less digits than its factorization.

12513888888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521412046 (or 521412042 counting only the distinct ones).

The product of its digits is 7864320, while the sum is 60.

The spelling of 12513888888 in words is "twelve billion, five hundred thirteen million, eight hundred eighty-eight thousand, eight hundred eighty-eight".