12645600751 has 4 divisors (see below), whose sum is σ = 14452115152. Its totient is φ = 10839086352.

The previous prime is 12645600749. The next prime is 12645600761. The reversal of 12645600751 is 15700654621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12645600751 - 2¹ = 12645600749 is a prime.

It is a super-2 number, since 2×12645600751² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12645600751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645600761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903257190 + ... + 903257203.

It is an arithmetic number, because the mean of its divisors is an integer number (3613028788).

Almost surely, 2^12645600751 is an apocalyptic number.

12645600751 is a deficient number, since it is larger than the sum of its proper divisors (1806514401).

12645600751 is an equidigital number, since it uses as much as digits as its factorization.

12645600751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806514400.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 12645600751 in words is "twelve billion, six hundred forty-five million, six hundred thousand, seven hundred fifty-one".