12513751387625 has 16 divisors (see below), whose sum is σ = 15648209845632. Its totient is φ = 9991098473200.

The previous prime is 12513751387619. The next prime is 12513751387681. The reversal of 12513751387625 is 52678315731521.

It is a happy number.

It is not a de Polignac number, because 12513751387625 - 2⁶ = 12513751387561 is a prime.

It is a super-2 number, since 2×12513751387625² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99450059 + ... + 99575808.

It is an arithmetic number, because the mean of its divisors is an integer number (978013115352).

Almost surely, 2^{12513751387625} is an apocalyptic number.

It is an amenable number.

12513751387625 is a deficient number, since it is larger than the sum of its proper divisors (3134458458007).

12513751387625 is an equidigital number, since it uses as much as digits as its factorization.

12513751387625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199026385 (or 199026375 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 56.

The spelling of 12513751387625 in words is "twelve trillion, five hundred thirteen billion, seven hundred fifty-one million, three hundred eighty-seven thousand, six hundred twenty-five".