12525664494 has 48 divisors (see below), whose sum is σ = 29150851536. Its totient is φ = 3577593600.

The previous prime is 12525664457. The next prime is 12525664513. The reversal of 12525664494 is 49446652521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1336264 + ... + 1345604.

It is an arithmetic number, because the mean of its divisors is an integer number (607309407).

Almost surely, 2^12525664494 is an apocalyptic number.

12525664494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12525664494 is an abundant number, since it is smaller than the sum of its proper divisors (16625187042).

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

12525664494 is a wasteful number, since it uses less digits than its factorization.

12525664494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13921 (or 13914 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 48.

The spelling of 12525664494 in words is "twelve billion, five hundred twenty-five million, six hundred sixty-four thousand, four hundred ninety-four".