12795627785 has 4 divisors (see below), whose sum is σ = 15354753348. Its totient is φ = 10236502224.

The previous prime is 12795627769. The next prime is 12795627799. The reversal of 12795627785 is 58772659721.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2167461136 + 10628166649 = 46556^2 + 103093^2 .

It is a cyclic number.

It is not a de Polignac number, because 12795627785 - 2⁴ = 12795627769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279562774 + ... + 1279562783.

It is an arithmetic number, because the mean of its divisors is an integer number (3838688337).

Almost surely, 2^12795627785 is an apocalyptic number.

It is an amenable number.

12795627785 is a deficient number, since it is larger than the sum of its proper divisors (2559125563).

12795627785 is an equidigital number, since it uses as much as digits as its factorization.

12795627785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559125562.

The product of its digits is 14817600, while the sum is 59.

The spelling of 12795627785 in words is "twelve billion, seven hundred ninety-five million, six hundred twenty-seven thousand, seven hundred eighty-five".