26944660469 has 2 divisors, whose sum is σ = 26944660470. Its totient is φ = 26944660468.

The previous prime is 26944660453. The next prime is 26944660541. The reversal of 26944660469 is 96406644962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19563616900 + 7381043569 = 139870^2 + 85913^2 .

It is a cyclic number.

It is not a de Polignac number, because 26944660469 - 2⁴ = 26944660453 is a prime.

It is a super-2 number, since 2×26944660469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26904660469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13472330234 + 13472330235.

It is an arithmetic number, because the mean of its divisors is an integer number (13472330235).

Almost surely, 2^26944660469 is an apocalyptic number.

It is an amenable number.

26944660469 is a deficient number, since it is larger than the sum of its proper divisors (1).

26944660469 is an equidigital number, since it uses as much as digits as its factorization.

26944660469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13436928, while the sum is 56.

The spelling of 26944660469 in words is "twenty-six billion, nine hundred forty-four million, six hundred sixty thousand, four hundred sixty-nine".