26159165791 has 8 divisors (see below), whose sum is σ = 28599722064. Its totient is φ = 23729017920.

The previous prime is 26159165783. The next prime is 26159165807. The reversal of 26159165791 is 19756195162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26159165791 - 2³ = 26159165783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26159169791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2596840 + ... + 2606893.

It is an arithmetic number, because the mean of its divisors is an integer number (3574965258).

Almost surely, 2^26159165791 is an apocalyptic number.

26159165791 is a deficient number, since it is larger than the sum of its proper divisors (2440556273).

26159165791 is a wasteful number, since it uses less digits than its factorization.

26159165791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204201.

The product of its digits is 1020600, while the sum is 52.

The spelling of 26159165791 in words is "twenty-six billion, one hundred fifty-nine million, one hundred sixty-five thousand, seven hundred ninety-one".