27983827529 has 8 divisors (see below), whose sum is σ = 32634201600. Its totient is φ = 23986137588.

The previous prime is 27983827463. The next prime is 27983827579. The reversal of 27983827529 is 92572838972.

It is not a de Polignac number, because 27983827529 - 2¹² = 27983823433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27983827579) 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, 40792409 + ... + 40793094.

It is an arithmetic number, because the mean of its divisors is an integer number (4079275200).

Almost surely, 2^27983827529 is an apocalyptic number.

It is an amenable number.

27983827529 is a deficient number, since it is larger than the sum of its proper divisors (4650374071).

27983827529 is an frugal number, since it uses more digits than its factorization.

27983827529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81585524 (or 81585510 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 62.

The spelling of 27983827529 in words is "twenty-seven billion, nine hundred eighty-three million, eight hundred twenty-seven thousand, five hundred twenty-nine".