26474725297 has 2 divisors, whose sum is σ = 26474725298. Its totient is φ = 26474725296.

The previous prime is 26474725283. The next prime is 26474725309. The reversal of 26474725297 is 79252747462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25649944336 + 824780961 = 160156^2 + 28719^2 .

It is a cyclic number.

It is not a de Polignac number, because 26474725297 - 2¹⁵ = 26474692529 is a prime.

It is a super-2 number, since 2×26474725297² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26474725217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13237362648 + 13237362649.

It is an arithmetic number, because the mean of its divisors is an integer number (13237362649).

Almost surely, 2^26474725297 is an apocalyptic number.

It is an amenable number.

26474725297 is a deficient number, since it is larger than the sum of its proper divisors (1).

26474725297 is an equidigital number, since it uses as much as digits as its factorization.

26474725297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11854080, while the sum is 55.

The spelling of 26474725297 in words is "twenty-six billion, four hundred seventy-four million, seven hundred twenty-five thousand, two hundred ninety-seven".