25850802871 has 8 divisors (see below), whose sum is σ = 27613665504. Its totient is φ = 24114854400.

The previous prime is 25850802799. The next prime is 25850802899. The reversal of 25850802871 is 17820805852.

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

It is a cyclic number.

It is not a de Polignac number, because 25850802871 - 2⁷ = 25850802743 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 (25850803871) by changing a digit.

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, 6726555 + ... + 6730396.

It is an arithmetic number, because the mean of its divisors is an integer number (3451708188).

Almost surely, 2^25850802871 is an apocalyptic number.

25850802871 is a deficient number, since it is larger than the sum of its proper divisors (1762862633).

25850802871 is a wasteful number, since it uses less digits than its factorization.

25850802871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13457081.

The product of its (nonzero) digits is 358400, while the sum is 46.

The spelling of 25850802871 in words is "twenty-five billion, eight hundred fifty million, eight hundred two thousand, eight hundred seventy-one".