26345632133 has 4 divisors (see below), whose sum is σ = 26359263468. Its totient is φ = 26332000800.

The previous prime is 26345632129. The next prime is 26345632153. The reversal of 26345632133 is 33123654362.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23060852164 + 3284779969 = 151858^2 + 57313^2 .

It is a cyclic number.

It is not a de Polignac number, because 26345632133 - 2² = 26345632129 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 (26345632153) 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, 6812768 + ... + 6816633.

It is an arithmetic number, because the mean of its divisors is an integer number (6589815867).

Almost surely, 2^26345632133 is an apocalyptic number.

It is an amenable number.

26345632133 is a deficient number, since it is larger than the sum of its proper divisors (13631335).

26345632133 is a wasteful number, since it uses less digits than its factorization.

26345632133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13631334.

The product of its digits is 233280, while the sum is 38.

The spelling of 26345632133 in words is "twenty-six billion, three hundred forty-five million, six hundred thirty-two thousand, one hundred thirty-three".