26541374791 has 4 divisors (see below), whose sum is σ = 27695347632. Its totient is φ = 25387401952.

The previous prime is 26541374777. The next prime is 26541374819. The reversal of 26541374791 is 19747314562.

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-26541374791 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26541374701) 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, 576986386 + ... + 576986431.

It is an arithmetic number, because the mean of its divisors is an integer number (6923836908).

Almost surely, 2^26541374791 is an apocalyptic number.

26541374791 is a deficient number, since it is larger than the sum of its proper divisors (1153972841).

26541374791 is a wasteful number, since it uses less digits than its factorization.

26541374791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153972840.

The product of its digits is 1270080, while the sum is 49.

The spelling of 26541374791 in words is "twenty-six billion, five hundred forty-one million, three hundred seventy-four thousand, seven hundred ninety-one".