12734672977 has 4 divisors (see below), whose sum is σ = 13714263220. Its totient is φ = 11755082736.

The previous prime is 12734672963. The next prime is 12734673043. The reversal of 12734672977 is 77927643721.

12734672977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77927643721 = 37 ⋅2106152533.

It can be written as a sum of positive squares in 2 ways, for example, as 7847125056 + 4887547921 = 88584^2 + 69911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12734672977 is a prime.

It is a super-2 number, since 2×12734672977² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12734672927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489795102 + ... + 489795127.

It is an arithmetic number, because the mean of its divisors is an integer number (3428565805).

Almost surely, 2^12734672977 is an apocalyptic number.

It is an amenable number.

12734672977 is a deficient number, since it is larger than the sum of its proper divisors (979590243).

12734672977 is an equidigital number, since it uses as much as digits as its factorization.

12734672977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979590242.

The product of its digits is 6223392, while the sum is 55.

The spelling of 12734672977 in words is "twelve billion, seven hundred thirty-four million, six hundred seventy-two thousand, nine hundred seventy-seven".