25743240863 has 4 divisors (see below), whose sum is σ = 26290969440. Its totient is φ = 25195512288.

The previous prime is 25743240857. The next prime is 25743240899. The reversal of 25743240863 is 36804234752.

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 25743240863 - 2²⁸ = 25474805407 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 (25743248863) 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, 273864218 + ... + 273864311.

It is an arithmetic number, because the mean of its divisors is an integer number (6572742360).

Almost surely, 2^25743240863 is an apocalyptic number.

25743240863 is a deficient number, since it is larger than the sum of its proper divisors (547728577).

25743240863 is an equidigital number, since it uses as much as digits as its factorization.

25743240863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547728576.

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 25743240863 in words is "twenty-five billion, seven hundred forty-three million, two hundred forty thousand, eight hundred sixty-three".