26108584457 has 2 divisors, whose sum is σ = 26108584458. Its totient is φ = 26108584456.

The previous prime is 26108584423. The next prime is 26108584499. The reversal of 26108584457 is 75448580162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24730393081 + 1378191376 = 157259^2 + 37124^2 .

It is a cyclic number.

It is not a de Polignac number, because 26108584457 - 2³⁰ = 25034842633 is a prime.

It is not a weakly prime, because it can be changed into another prime (26108584417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13054292228 + 13054292229.

It is an arithmetic number, because the mean of its divisors is an integer number (13054292229).

Almost surely, 2^26108584457 is an apocalyptic number.

It is an amenable number.

26108584457 is a deficient number, since it is larger than the sum of its proper divisors (1).

26108584457 is an equidigital number, since it uses as much as digits as its factorization.

26108584457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 26108584457 in words is "twenty-six billion, one hundred eight million, five hundred eighty-four thousand, four hundred fifty-seven".