27750431347 has 8 divisors (see below), whose sum is σ = 27794938752. Its totient is φ = 27705955200.

The previous prime is 27750431327. The next prime is 27750431351. The reversal of 27750431347 is 74313405772.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27750431347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27750431327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2276593 + ... + 2288749.

It is an arithmetic number, because the mean of its divisors is an integer number (3474367344).

Almost surely, 2^27750431347 is an apocalyptic number.

27750431347 is a deficient number, since it is larger than the sum of its proper divisors (44507405).

27750431347 is a wasteful number, since it uses less digits than its factorization.

27750431347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15629.

The product of its (nonzero) digits is 493920, while the sum is 43.

The spelling of 27750431347 in words is "twenty-seven billion, seven hundred fifty million, four hundred thirty-one thousand, three hundred forty-seven".