12752652779 has 4 divisors (see below), whose sum is σ = 12765522240. Its totient is φ = 12739783320.

The previous prime is 12752652733. The next prime is 12752652793. The reversal of 12752652779 is 97725625721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12752652779 is a prime.

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 12752652779.

It is not an unprimeable number, because it can be changed into a prime (12752652709) 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, 6433244 + ... + 6435225.

It is an arithmetic number, because the mean of its divisors is an integer number (3191380560).

Almost surely, 2^12752652779 is an apocalyptic number.

12752652779 is a deficient number, since it is larger than the sum of its proper divisors (12869461).

12752652779 is an equidigital number, since it uses as much as digits as its factorization.

12752652779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12869460.

The product of its digits is 3704400, while the sum is 53.

The spelling of 12752652779 in words is "twelve billion, seven hundred fifty-two million, six hundred fifty-two thousand, seven hundred seventy-nine".