26397672792797 has 2 divisors, whose sum is σ = 26397672792798. Its totient is φ = 26397672792796.

The previous prime is 26397672792749. The next prime is 26397672792817. The reversal of 26397672792797 is 79729727679362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20243646498436 + 6154026294361 = 4499294^2 + 2480731^2 .

It is a cyclic number.

It is not a de Polignac number, because 26397672792797 - 2³⁰ = 26396599050973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26397672792707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13198836396398 + 13198836396399.

It is an arithmetic number, because the mean of its divisors is an integer number (13198836396399).

Almost surely, 2^{26397672792797} is an apocalyptic number.

It is an amenable number.

26397672792797 is a deficient number, since it is larger than the sum of its proper divisors (1).

26397672792797 is an equidigital number, since it uses as much as digits as its factorization.

26397672792797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10585989792, while the sum is 83.

The spelling of 26397672792797 in words is "twenty-six trillion, three hundred ninety-seven billion, six hundred seventy-two million, seven hundred ninety-two thousand, seven hundred ninety-seven".