12772488346 has 8 divisors (see below), whose sum is σ = 19626018804. Its totient is φ = 6230482080.

The previous prime is 12772488307. The next prime is 12772488349. The reversal of 12772488346 is 64388427721.

It can be written as a sum of positive squares in 2 ways, for example, as 8183916225 + 4588572121 = 90465^2 + 67739^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12772488293 and 12772488302.

It is not an unprimeable number, because it can be changed into a prime (12772488349) 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, 77880945 + ... + 77881108.

Almost surely, 2^12772488346 is an apocalyptic number.

12772488346 is a deficient number, since it is larger than the sum of its proper divisors (6853530458).

12772488346 is a wasteful number, since it uses less digits than its factorization.

12772488346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155762096.

The product of its digits is 3612672, while the sum is 52.

The spelling of 12772488346 in words is "twelve billion, seven hundred seventy-two million, four hundred eighty-eight thousand, three hundred forty-six".