27404446847 has 12 divisors (see below), whose sum is σ = 29072506320. Its totient is φ = 25783148160.

The previous prime is 27404446819. The next prime is 27404446859. The reversal of 27404446847 is 74864440472.

It is not a de Polignac number, because 27404446847 - 2²⁰ = 27403398271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27404446795 and 27404446804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27404446247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74522 + ... + 245687.

It is an arithmetic number, because the mean of its divisors is an integer number (2422708860).

Almost surely, 2^27404446847 is an apocalyptic number.

27404446847 is a deficient number, since it is larger than the sum of its proper divisors (1668059473).

27404446847 is an equidigital number, since it uses as much as digits as its factorization.

27404446847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320354 (or 320293 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 50.

The spelling of 27404446847 in words is "twenty-seven billion, four hundred four million, four hundred forty-six thousand, eight hundred forty-seven".