12775252646 has 8 divisors (see below), whose sum is σ = 20636946624. Its totient is φ = 5896270440.

The previous prime is 12775252639. The next prime is 12775252649. The reversal of 12775252646 is 64625257721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12775252646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12775252649) 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, 245677910 + ... + 245677961.

It is an arithmetic number, because the mean of its divisors is an integer number (2579618328).

Almost surely, 2^12775252646 is an apocalyptic number.

12775252646 is a deficient number, since it is larger than the sum of its proper divisors (7861693978).

12775252646 is a wasteful number, since it uses less digits than its factorization.

12775252646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491355886.

The product of its digits is 1411200, while the sum is 47.

The spelling of 12775252646 in words is "twelve billion, seven hundred seventy-five million, two hundred fifty-two thousand, six hundred forty-six".