26097722097 has 4 divisors (see below), whose sum is σ = 34796962800. Its totient is φ = 17398481396.

The previous prime is 26097722089. The next prime is 26097722111. The reversal of 26097722097 is 79022779062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26097722097 - 2³ = 26097722089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26097022097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4349620347 + ... + 4349620352.

It is an arithmetic number, because the mean of its divisors is an integer number (8699240700).

Almost surely, 2^26097722097 is an apocalyptic number.

It is an amenable number.

26097722097 is a deficient number, since it is larger than the sum of its proper divisors (8699240703).

26097722097 is an equidigital number, since it uses as much as digits as its factorization.

26097722097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8699240702.

The product of its (nonzero) digits is 1333584, while the sum is 51.

The spelling of 26097722097 in words is "twenty-six billion, ninety-seven million, seven hundred twenty-two thousand, ninety-seven".