27728746371 has 12 divisors (see below), whose sum is σ = 40072303440. Its totient is φ = 18476752560.

The previous prime is 27728746303. The next prime is 27728746403. The reversal of 27728746371 is 17364782772.

It is not a de Polignac number, because 27728746371 - 2¹⁰ = 27728745347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27728706371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 737160 + ... + 773861.

It is an arithmetic number, because the mean of its divisors is an integer number (3339358620).

Almost surely, 2^27728746371 is an apocalyptic number.

27728746371 is a deficient number, since it is larger than the sum of its proper divisors (12343557069).

27728746371 is a wasteful number, since it uses less digits than its factorization.

27728746371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513066 (or 1513063 counting only the distinct ones).

The product of its digits is 5531904, while the sum is 54.

The spelling of 27728746371 in words is "twenty-seven billion, seven hundred twenty-eight million, seven hundred forty-six thousand, three hundred seventy-one".