25683424235839 has 4 divisors (see below), whose sum is σ = 25685407065456. Its totient is φ = 25681441406224.

The previous prime is 25683424235837. The next prime is 25683424235851. The reversal of 25683424235839 is 93853242438652.

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 25683424235839 - 2¹ = 25683424235837 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 (25683424235837) 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, 991395379 + ... + 991421284.

It is an arithmetic number, because the mean of its divisors is an integer number (6421351766364).

Almost surely, 2^{25683424235839} is an apocalyptic number.

25683424235839 is a deficient number, since it is larger than the sum of its proper divisors (1982829617).

25683424235839 is a wasteful number, since it uses less digits than its factorization.

25683424235839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982829616.

The product of its digits is 298598400, while the sum is 64.

The spelling of 25683424235839 in words is "twenty-five trillion, six hundred eighty-three billion, four hundred twenty-four million, two hundred thirty-five thousand, eight hundred thirty-nine".