12772834146 has 24 divisors (see below), whose sum is σ = 27693218124. Its totient is φ = 4254727680.

The previous prime is 12772834133. The next prime is 12772834147. The reversal of 12772834146 is 64143827721.

It can be written as a sum of positive squares in 2 ways, for example, as 12379010121 + 393824025 = 111261^2 + 19845^2 .

It is not an unprimeable number, because it can be changed into a prime (12772834147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212911 + ... + 266226.

Almost surely, 2^12772834146 is an apocalyptic number.

12772834146 is an abundant number, since it is smaller than the sum of its proper divisors (14920383978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12772834146 is a wasteful number, since it uses less digits than its factorization.

12772834146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480626 (or 480623 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The spelling of 12772834146 in words is "twelve billion, seven hundred seventy-two million, eight hundred thirty-four thousand, one hundred forty-six".