25822138463 has 6 divisors (see below), whose sum is σ = 28383011832. Its totient is φ = 23474671220.

The previous prime is 25822138453. The next prime is 25822138481. The reversal of 25822138463 is 36483122852.

It is a happy number.

It is not a de Polignac number, because 25822138463 - 2⁶ = 25822138399 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 (25822138403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106702931 + ... + 106703172.

It is an arithmetic number, because the mean of its divisors is an integer number (4730501972).

Almost surely, 2^25822138463 is an apocalyptic number.

25822138463 is a deficient number, since it is larger than the sum of its proper divisors (2560873369).

25822138463 is a wasteful number, since it uses less digits than its factorization.

25822138463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213406125 (or 213406114 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The spelling of 25822138463 in words is "twenty-five billion, eight hundred twenty-two million, one hundred thirty-eight thousand, four hundred sixty-three".