26405052143 has 4 divisors (see below), whose sum is σ = 26903260728. Its totient is φ = 25906843560.

The previous prime is 26405052133. The next prime is 26405052151. The reversal of 26405052143 is 34125050462.

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

It is a cyclic number.

It is not a de Polignac number, because 26405052143 - 2²⁸ = 26136616687 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 (26405052133) 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, 249104213 + ... + 249104318.

It is an arithmetic number, because the mean of its divisors is an integer number (6725815182).

Almost surely, 2^26405052143 is an apocalyptic number.

26405052143 is a deficient number, since it is larger than the sum of its proper divisors (498208585).

26405052143 is an equidigital number, since it uses as much as digits as its factorization.

26405052143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498208584.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 26405052143 in words is "twenty-six billion, four hundred five million, fifty-two thousand, one hundred forty-three".