26890008222929 has 2 divisors, whose sum is σ = 26890008222930. Its totient is φ = 26890008222928.

The previous prime is 26890008222859. The next prime is 26890008222941. The reversal of 26890008222929 is 92922280009862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26208747824704 + 681260398225 = 5119448^2 + 825385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26890008222929 is a prime.

It is a super-2 number, since 2×26890008222929² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26890008222989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13445004111464 + 13445004111465.

It is an arithmetic number, because the mean of its divisors is an integer number (13445004111465).

Almost surely, 2^{26890008222929} is an apocalyptic number.

It is an amenable number.

26890008222929 is a deficient number, since it is larger than the sum of its proper divisors (1).

26890008222929 is an equidigital number, since it uses as much as digits as its factorization.

26890008222929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8957952, while the sum is 59.

The spelling of 26890008222929 in words is "twenty-six trillion, eight hundred ninety billion, eight million, two hundred twenty-two thousand, nine hundred twenty-nine".