26843907490429 has 2 divisors, whose sum is σ = 26843907490430. Its totient is φ = 26843907490428.

The previous prime is 26843907490399. The next prime is 26843907490457. The reversal of 26843907490429 is 92409470934862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26651974128025 + 191933362404 = 5162555^2 + 438102^2 .

It is a cyclic number.

It is not a de Polignac number, because 26843907490429 - 2¹⁹ = 26843906966141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26843907490489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13421953745214 + 13421953745215.

It is an arithmetic number, because the mean of its divisors is an integer number (13421953745215).

Almost surely, 2^{26843907490429} is an apocalyptic number.

It is an amenable number.

26843907490429 is a deficient number, since it is larger than the sum of its proper divisors (1).

26843907490429 is an equidigital number, since it uses as much as digits as its factorization.

26843907490429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188116992, while the sum is 67.

The spelling of 26843907490429 in words is "twenty-six trillion, eight hundred forty-three billion, nine hundred seven million, four hundred ninety thousand, four hundred twenty-nine".