26045774099 has 4 divisors (see below), whose sum is σ = 26434517064. Its totient is φ = 25657031136.

The previous prime is 26045774071. The next prime is 26045774101. The reversal of 26045774099 is 99047754062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26045774099 is a prime.

It is a super-2 number, since 2×26045774099² (a number of 22 digits) contains 22 as substring.

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 26045774099.

It is not an unprimeable number, because it can be changed into a prime (26045774399) 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, 194371382 + ... + 194371515.

It is an arithmetic number, because the mean of its divisors is an integer number (6608629266).

Almost surely, 2^26045774099 is an apocalyptic number.

26045774099 is a deficient number, since it is larger than the sum of its proper divisors (388742965).

26045774099 is an equidigital number, since it uses as much as digits as its factorization.

26045774099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388742964.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 26045774099 in words is "twenty-six billion, forty-five million, seven hundred seventy-four thousand, ninety-nine".