12512651263765 has 16 divisors (see below), whose sum is σ = 15364913769216. Its totient is φ = 9776982600000.

The previous prime is 12512651263747. The next prime is 12512651263781. The reversal of 12512651263765 is 56736215621521.

It is not a de Polignac number, because 12512651263765 - 2¹⁷ = 12512651132693 is a prime.

It is a Duffinian number.

It is a congruent 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, 5169355 + ... + 7193575.

It is an arithmetic number, because the mean of its divisors is an integer number (960307110576).

Almost surely, 2^{12512651263765} is an apocalyptic number.

It is an amenable number.

12512651263765 is a deficient number, since it is larger than the sum of its proper divisors (2852262505451).

12512651263765 is a wasteful number, since it uses less digits than its factorization.

12512651263765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053020.

The product of its digits is 4536000, while the sum is 52.

The spelling of 12512651263765 in words is "twelve trillion, five hundred twelve billion, six hundred fifty-one million, two hundred sixty-three thousand, seven hundred sixty-five".