2134561439929 has 2 divisors, whose sum is σ = 2134561439930. Its totient is φ = 2134561439928.

The previous prime is 2134561439893. The next prime is 2134561439939. The reversal of 2134561439929 is 9299341654312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1980991505529 + 153569934400 = 1407477^2 + 391880^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134561439929 - 2¹¹ = 2134561437881 is a prime.

It is not a weakly prime, because it can be changed into another prime (2134561439939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067280719964 + 1067280719965.

It is an arithmetic number, because the mean of its divisors is an integer number (1067280719965).

Almost surely, 2^{2134561439929} is an apocalyptic number.

It is an amenable number.

2134561439929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134561439929 is an equidigital number, since it uses as much as digits as its factorization.

2134561439929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12597120, while the sum is 58.

The spelling of 2134561439929 in words is "two trillion, one hundred thirty-four billion, five hundred sixty-one million, four hundred thirty-nine thousand, nine hundred twenty-nine".