25426137346 has 12 divisors (see below), whose sum is σ = 40514659218. Its totient is φ = 11965240832.

The previous prime is 25426137301. The next prime is 25426137361. The reversal of 25426137346 is 64373162452.

It can be written as a sum of positive squares in 3 ways, for example, as 25247621025 + 178516321 = 158895^2 + 13361^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21994351 + ... + 21995506.

Almost surely, 2^25426137346 is an apocalyptic number.

25426137346 is a deficient number, since it is larger than the sum of its proper divisors (15088521872).

25426137346 is a wasteful number, since it uses less digits than its factorization.

25426137346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43989893 (or 43989876 counting only the distinct ones).

The product of its digits is 725760, while the sum is 43.

Adding to 25426137346 its reverse (64373162452), we get a palindrome (89799299798).

The spelling of 25426137346 in words is "twenty-five billion, four hundred twenty-six million, one hundred thirty-seven thousand, three hundred forty-six".