25838368431 has 8 divisors (see below), whose sum is σ = 34454622384. Its totient is φ = 17223846720.

The previous prime is 25838368421. The next prime is 25838368441. The reversal of 25838368431 is 13486383852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25838368421) and next prime (25838368441).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25838368431 - 2⁵ = 25838368399 is a prime.

It is a super-2 number, since 2×25838368431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25838368411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397846 + ... + 458211.

It is an arithmetic number, because the mean of its divisors is an integer number (4306827798).

Almost surely, 2^25838368431 is an apocalyptic number.

25838368431 is a deficient number, since it is larger than the sum of its proper divisors (8616253953).

25838368431 is a wasteful number, since it uses less digits than its factorization.

25838368431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866121.

The product of its digits is 3317760, while the sum is 51.

The spelling of 25838368431 in words is "twenty-five billion, eight hundred thirty-eight million, three hundred sixty-eight thousand, four hundred thirty-one".