27804316825 has 12 divisors (see below), whose sum is σ = 34537751248. Its totient is φ = 22204486800.

The previous prime is 27804316819. The next prime is 27804316849. The reversal of 27804316825 is 52861340872.

It is a de Polignac number, because none of the positive numbers 2^k-27804316825 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 959607 + ... + 988156.

Almost surely, 2^27804316825 is an apocalyptic number.

27804316825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27804316825 is a deficient number, since it is larger than the sum of its proper divisors (6733434423).

27804316825 is a wasteful number, since it uses less digits than its factorization.

27804316825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948344 (or 1948339 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 27804316825 in words is "twenty-seven billion, eight hundred four million, three hundred sixteen thousand, eight hundred twenty-five".