27631088447 has 12 divisors (see below), whose sum is σ = 29586754680. Its totient is φ = 25733084112.

The previous prime is 27631088399. The next prime is 27631088461. The reversal of 27631088447 is 74488013672.

It is not a de Polignac number, because 27631088447 - 2²² = 27626894143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27631088395 and 27631088404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27631088477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142748 + ... + 275025.

It is an arithmetic number, because the mean of its divisors is an integer number (2465562890).

Almost surely, 2^27631088447 is an apocalyptic number.

27631088447 is a deficient number, since it is larger than the sum of its proper divisors (1955666233).

27631088447 is an equidigital number, since it uses as much as digits as its factorization.

27631088447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417910 (or 417851 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 27631088447 in words is "twenty-seven billion, six hundred thirty-one million, eighty-eight thousand, four hundred forty-seven".