2134234139729 has 2 divisors, whose sum is σ = 2134234139730. Its totient is φ = 2134234139728.

The previous prime is 2134234139717. The next prime is 2134234139743. The reversal of 2134234139729 is 9279314324312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1897671553600 + 236562586129 = 1377560^2 + 486377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2134234139729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2134234139029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067117069864 + 1067117069865.

It is an arithmetic number, because the mean of its divisors is an integer number (1067117069865).

Almost surely, 2^{2134234139729} is an apocalyptic number.

It is an amenable number.

2134234139729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134234139729 is an equidigital number, since it uses as much as digits as its factorization.

2134234139729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 50.

The spelling of 2134234139729 in words is "two trillion, one hundred thirty-four billion, two hundred thirty-four million, one hundred thirty-nine thousand, seven hundred twenty-nine".