27788473747 has 8 divisors (see below), whose sum is σ = 28570269600. Its totient is φ = 27008296704.

The previous prime is 27788473729. The next prime is 27788473789. The reversal of 27788473747 is 74737488772.

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

It is a cyclic number.

It is not a de Polignac number, because 27788473747 - 2³¹ = 25640990099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27788443747) 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, 369847 + ... + 438592.

It is an arithmetic number, because the mean of its divisors is an integer number (3571283700).

Almost surely, 2^27788473747 is an apocalyptic number.

27788473747 is a deficient number, since it is larger than the sum of its proper divisors (781795853).

27788473747 is an equidigital number, since it uses as much as digits as its factorization.

27788473747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809405.

The product of its digits is 103262208, while the sum is 64.

The spelling of 27788473747 in words is "twenty-seven billion, seven hundred eighty-eight million, four hundred seventy-three thousand, seven hundred forty-seven".