26757532469 has 2 divisors, whose sum is σ = 26757532470. Its totient is φ = 26757532468.

The previous prime is 26757532433. The next prime is 26757532481. The reversal of 26757532469 is 96423575762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20352731569 + 6404800900 = 142663^2 + 80030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26757532469 is a prime.

It is a super-2 number, since 2×26757532469² (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 (26757532409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13378766234 + 13378766235.

It is an arithmetic number, because the mean of its divisors is an integer number (13378766235).

Almost surely, 2^26757532469 is an apocalyptic number.

It is an amenable number.

26757532469 is a deficient number, since it is larger than the sum of its proper divisors (1).

26757532469 is an equidigital number, since it uses as much as digits as its factorization.

26757532469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19051200, while the sum is 56.

The spelling of 26757532469 in words is "twenty-six billion, seven hundred fifty-seven million, five hundred thirty-two thousand, four hundred sixty-nine".