12939171011834 has 16 divisors (see below), whose sum is σ = 19892342269800. Its totient is φ = 6308552183040.

The previous prime is 12939171011771. The next prime is 12939171011873. The reversal of 12939171011834 is 43811017193921.

12939171011834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10776138986209 + 2163032025625 = 3282703^2 + 1470725^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40321139 + ... + 40640774.

Almost surely, 2^{12939171011834} is an apocalyptic number.

12939171011834 is a deficient number, since it is larger than the sum of its proper divisors (6953171257966).

12939171011834 is a wasteful number, since it uses less digits than its factorization.

12939171011834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80963905.

The product of its (nonzero) digits is 326592, while the sum is 50.

The spelling of 12939171011834 in words is "twelve trillion, nine hundred thirty-nine billion, one hundred seventy-one million, eleven thousand, eight hundred thirty-four".