26992011660829 has 2 divisors, whose sum is σ = 26992011660830. Its totient is φ = 26992011660828.

The previous prime is 26992011660751. The next prime is 26992011660847. The reversal of 26992011660829 is 92806611029962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19403628552025 + 7588383108804 = 4404955^2 + 2754702^2 .

It is a cyclic number.

It is not a de Polignac number, because 26992011660829 - 2¹⁵ = 26992011628061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26992011060829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13496005830414 + 13496005830415.

It is an arithmetic number, because the mean of its divisors is an integer number (13496005830415).

Almost surely, 2^{26992011660829} is an apocalyptic number.

It is an amenable number.

26992011660829 is a deficient number, since it is larger than the sum of its proper divisors (1).

26992011660829 is an equidigital number, since it uses as much as digits as its factorization.

26992011660829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10077696, while the sum is 61.

The spelling of 26992011660829 in words is "twenty-six trillion, nine hundred ninety-two billion, eleven million, six hundred sixty thousand, eight hundred twenty-nine".