25641282338 has 16 divisors (see below), whose sum is σ = 44118691584. Its totient is φ = 10948569120.

The previous prime is 25641282281. The next prime is 25641282341. The reversal of 25641282338 is 83328214652.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3375395 + ... + 3382982.

It is an arithmetic number, because the mean of its divisors is an integer number (2757418224).

Almost surely, 2^25641282338 is an apocalyptic number.

25641282338 is a deficient number, since it is larger than the sum of its proper divisors (18477409246).

25641282338 is a wasteful number, since it uses less digits than its factorization.

25641282338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6758657.

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

The spelling of 25641282338 in words is "twenty-five billion, six hundred forty-one million, two hundred eighty-two thousand, three hundred thirty-eight".