25680840284 has 24 divisors (see below), whose sum is σ = 49040303088. Its totient is φ = 11669955840.

The previous prime is 25680840277. The next prime is 25680840301. The reversal of 25680840284 is 48204808652.

It is a happy number.

It is a congruent 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, 89954 + ... + 243830.

It is an arithmetic number, because the mean of its divisors is an integer number (2043345962).

Almost surely, 2^25680840284 is an apocalyptic number.

It is an amenable number.

25680840284 is a deficient number, since it is larger than the sum of its proper divisors (23359462804).

25680840284 is a wasteful number, since it uses less digits than its factorization.

25680840284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157685 (or 157683 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 47.

The spelling of 25680840284 in words is "twenty-five billion, six hundred eighty million, eight hundred forty thousand, two hundred eighty-four".