26498124157 has 2 divisors, whose sum is σ = 26498124158. Its totient is φ = 26498124156.

The previous prime is 26498124113. The next prime is 26498124181. The reversal of 26498124157 is 75142189462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18038907481 + 8459216676 = 134309^2 + 91974^2 .

It is a cyclic number.

It is not a de Polignac number, because 26498124157 - 2¹¹ = 26498122109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26498124157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26498121157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13249062078 + 13249062079.

It is an arithmetic number, because the mean of its divisors is an integer number (13249062079).

Almost surely, 2^26498124157 is an apocalyptic number.

It is an amenable number.

26498124157 is a deficient number, since it is larger than the sum of its proper divisors (1).

26498124157 is an equidigital number, since it uses as much as digits as its factorization.

26498124157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 49.

The spelling of 26498124157 in words is "twenty-six billion, four hundred ninety-eight million, one hundred twenty-four thousand, one hundred fifty-seven".