12509734914 has 24 divisors (see below), whose sum is σ = 28282879872. Its totient is φ = 3988611000.

The previous prime is 12509734859. The next prime is 12509734921. The reversal of 12509734914 is 41943790521.

It is a self number, because there is not a number n which added to its sum of digits gives 12509734914.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15107962 + ... + 15108789.

It is an arithmetic number, because the mean of its divisors is an integer number (1178453328).

Almost surely, 2^12509734914 is an apocalyptic number.

12509734914 is an abundant number, since it is smaller than the sum of its proper divisors (15773144958).

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

12509734914 is a wasteful number, since it uses less digits than its factorization.

12509734914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30216782 (or 30216779 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 12509734914 in words is "twelve billion, five hundred nine million, seven hundred thirty-four thousand, nine hundred fourteen".