26834391193 has 2 divisors, whose sum is σ = 26834391194. Its totient is φ = 26834391192.

The previous prime is 26834391139. The next prime is 26834391209. The reversal of 26834391193 is 39119343862.

Together with previous prime (26834391139) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26622164569 + 212226624 = 163163^2 + 14568^2 .

It is a cyclic number.

It is not a de Polignac number, because 26834391193 - 2²⁵ = 26800836761 is a prime.

It is not a weakly prime, because it can be changed into another prime (26834391293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13417195596 + 13417195597.

It is an arithmetic number, because the mean of its divisors is an integer number (13417195597).

Almost surely, 2^26834391193 is an apocalyptic number.

It is an amenable number.

26834391193 is a deficient number, since it is larger than the sum of its proper divisors (1).

26834391193 is an equidigital number, since it uses as much as digits as its factorization.

26834391193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 49.

The spelling of 26834391193 in words is "twenty-six billion, eight hundred thirty-four million, three hundred ninety-one thousand, one hundred ninety-three".