26059945697 has 4 divisors (see below), whose sum is σ = 26071777200. Its totient is φ = 26048114196.

The previous prime is 26059945687. The next prime is 26059945759. The reversal of 26059945697 is 79654995062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26059945697 - 2²⁶ = 25992836833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26059945687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5912447 + ... + 5916852.

It is an arithmetic number, because the mean of its divisors is an integer number (6517944300).

Almost surely, 2^26059945697 is an apocalyptic number.

It is an amenable number.

26059945697 is a deficient number, since it is larger than the sum of its proper divisors (11831503).

26059945697 is a wasteful number, since it uses less digits than its factorization.

26059945697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11831502.

The product of its (nonzero) digits is 36741600, while the sum is 62.

The spelling of 26059945697 in words is "twenty-six billion, fifty-nine million, nine hundred forty-five thousand, six hundred ninety-seven".