26323697297 has 4 divisors (see below), whose sum is σ = 26391367860. Its totient is φ = 26256026736.

The previous prime is 26323697291. The next prime is 26323697303. The reversal of 26323697297 is 79279632362.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (26323697291) and next prime (26323697303).

It can be written as a sum of positive squares in 2 ways, for example, as 17202683281 + 9121014016 = 131159^2 + 95504^2 .

It is a cyclic number.

It is not a de Polignac number, because 26323697297 - 2¹⁸ = 26323435153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26323697291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33834698 + ... + 33835475.

It is an arithmetic number, because the mean of its divisors is an integer number (6597841965).

Almost surely, 2^26323697297 is an apocalyptic number.

It is an amenable number.

26323697297 is a deficient number, since it is larger than the sum of its proper divisors (67670563).

26323697297 is an equidigital number, since it uses as much as digits as its factorization.

26323697297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67670562.

The product of its digits is 10287648, while the sum is 56.

The spelling of 26323697297 in words is "twenty-six billion, three hundred twenty-three million, six hundred ninety-seven thousand, two hundred ninety-seven".