1312536406625 has 16 divisors (see below), whose sum is σ = 1638077575680. Its totient is φ = 1050008522800.

The previous prime is 1312536406603. The next prime is 1312536406637. The reversal of 1312536406625 is 5266046352131.

It is not a de Polignac number, because 1312536406625 - 2¹⁶ = 1312536341089 is a prime.

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, 11500592 + ... + 11614158.

It is an arithmetic number, because the mean of its divisors is an integer number (102379848480).

Almost surely, 2^{1312536406625} is an apocalyptic number.

It is an amenable number.

1312536406625 is a deficient number, since it is larger than the sum of its proper divisors (325541169055).

1312536406625 is an equidigital number, since it uses as much as digits as its factorization.

1312536406625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206041 (or 206031 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 1312536406625 in words is "one trillion, three hundred twelve billion, five hundred thirty-six million, four hundred six thousand, six hundred twenty-five".