27821295850 has 12 divisors (see below), whose sum is σ = 51747610374. Its totient is φ = 11128518320.

The previous prime is 27821295809. The next prime is 27821295863. The reversal of 27821295850 is 5859212872.

It can be written as a sum of positive squares in 3 ways, for example, as 21602238529 + 6219057321 = 146977^2 + 78861^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27821295794 and 27821295803.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278212909 + ... + 278213008.

Almost surely, 2^27821295850 is an apocalyptic number.

27821295850 is a deficient number, since it is larger than the sum of its proper divisors (23926314524).

27821295850 is a wasteful number, since it uses less digits than its factorization.

27821295850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556425929 (or 556425924 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 27821295850 in words is "twenty-seven billion, eight hundred twenty-one million, two hundred ninety-five thousand, eight hundred fifty".