12734936709 has 16 divisors (see below), whose sum is σ = 18534195264. Its totient is φ = 7713705600.

The previous prime is 12734936693. The next prime is 12734936719. The reversal of 12734936709 is 90763943721.

It is not a de Polignac number, because 12734936709 - 2⁴ = 12734936693 is a prime.

It is a super-2 number, since 2×12734936709² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12734936719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52222 + ... + 167919.

It is an arithmetic number, because the mean of its divisors is an integer number (1158387204).

Almost surely, 2^12734936709 is an apocalyptic number.

It is an amenable number.

12734936709 is a deficient number, since it is larger than the sum of its proper divisors (5799258555).

12734936709 is a wasteful number, since it uses less digits than its factorization.

12734936709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221908.

The product of its (nonzero) digits is 1714608, while the sum is 51.

The spelling of 12734936709 in words is "twelve billion, seven hundred thirty-four million, nine hundred thirty-six thousand, seven hundred nine".