26191874113 has 4 divisors (see below), whose sum is σ = 26206766080. Its totient is φ = 26176982148.

The previous prime is 26191874087. The next prime is 26191874119. The reversal of 26191874113 is 31147819162.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31147819162 = 2 ⋅15573909581.

It is a cyclic number.

It is not a de Polignac number, because 26191874113 - 2²⁹ = 25655003201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26191874113.

It is not an unprimeable number, because it can be changed into a prime (26191874119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7443345 + ... + 7446862.

It is an arithmetic number, because the mean of its divisors is an integer number (6551691520).

Almost surely, 2^26191874113 is an apocalyptic number.

It is an amenable number.

26191874113 is a deficient number, since it is larger than the sum of its proper divisors (14891967).

26191874113 is a wasteful number, since it uses less digits than its factorization.

26191874113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14891966.

The product of its digits is 72576, while the sum is 43.

The spelling of 26191874113 in words is "twenty-six billion, one hundred ninety-one million, eight hundred seventy-four thousand, one hundred thirteen".