26340099293 has 2 divisors, whose sum is σ = 26340099294. Its totient is φ = 26340099292.

The previous prime is 26340099211. The next prime is 26340099301. The reversal of 26340099293 is 39299004362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25902327364 + 437771929 = 160942^2 + 20923^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26340099293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26340098293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13170049646 + 13170049647.

It is an arithmetic number, because the mean of its divisors is an integer number (13170049647).

Almost surely, 2^26340099293 is an apocalyptic number.

It is an amenable number.

26340099293 is a deficient number, since it is larger than the sum of its proper divisors (1).

26340099293 is an equidigital number, since it uses as much as digits as its factorization.

26340099293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 47.

The spelling of 26340099293 in words is "twenty-six billion, three hundred forty million, ninety-nine thousand, two hundred ninety-three".