26161245259 has 2 divisors, whose sum is σ = 26161245260. Its totient is φ = 26161245258.

The previous prime is 26161245251. The next prime is 26161245287. The reversal of 26161245259 is 95254216162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26161245259 - 2³ = 26161245251 is a prime.

It is not a weakly prime, because it can be changed into another prime (26161245251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13080622629 + 13080622630.

It is an arithmetic number, because the mean of its divisors is an integer number (13080622630).

Almost surely, 2^26161245259 is an apocalyptic number.

26161245259 is a deficient number, since it is larger than the sum of its proper divisors (1).

26161245259 is an equidigital number, since it uses as much as digits as its factorization.

26161245259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 43.

The spelling of 26161245259 in words is "twenty-six billion, one hundred sixty-one million, two hundred forty-five thousand, two hundred fifty-nine".