26209048739 has 2 divisors, whose sum is σ = 26209048740. Its totient is φ = 26209048738.

The previous prime is 26209048687. The next prime is 26209048759. The reversal of 26209048739 is 93784090262.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26209048739 is a prime.

It is not a weakly prime, because it can be changed into another prime (26209048759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13104524369 + 13104524370.

It is an arithmetic number, because the mean of its divisors is an integer number (13104524370).

Almost surely, 2^26209048739 is an apocalyptic number.

26209048739 is a deficient number, since it is larger than the sum of its proper divisors (1).

26209048739 is an equidigital number, since it uses as much as digits as its factorization.

26209048739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 26209048739 in words is "twenty-six billion, two hundred nine million, forty-eight thousand, seven hundred thirty-nine".