26122669 has 2 divisors, whose sum is σ = 26122670. Its totient is φ = 26122668.

The previous prime is 26122661. The next prime is 26122709. The reversal of 26122669 is 96622162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21114025 + 5008644 = 4595^2 + 2238^2 .

It is a cyclic number.

It is not a de Polignac number, because 26122669 - 2³ = 26122661 is a prime.

It is a super-2 number, since 2×26122669² = 1364787671367122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26122661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13061334 + 13061335.

It is an arithmetic number, because the mean of its divisors is an integer number (13061335).

Almost surely, 2^26122669 is an apocalyptic number.

It is an amenable number.

26122669 is a deficient number, since it is larger than the sum of its proper divisors (1).

26122669 is an equidigital number, since it uses as much as digits as its factorization.

26122669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 26122669 is about 5111.0340441050. The cubic root of 26122669 is about 296.7147817147.

The spelling of 26122669 in words is "twenty-six million, one hundred twenty-two thousand, six hundred sixty-nine".