27739996247 has 8 divisors (see below), whose sum is σ = 28134604800. Its totient is φ = 27346474584.

The previous prime is 27739996243. The next prime is 27739996253. The reversal of 27739996247 is 74269993772.

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 27739996247 - 2² = 27739996243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27739996243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220247 + ... + 322472.

It is an arithmetic number, because the mean of its divisors is an integer number (3516825600).

Almost surely, 2^27739996247 is an apocalyptic number.

27739996247 is a deficient number, since it is larger than the sum of its proper divisors (394608553).

27739996247 is an equidigital number, since it uses as much as digits as its factorization.

27739996247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543445.

The product of its digits is 72013536, while the sum is 65.

The spelling of 27739996247 in words is "twenty-seven billion, seven hundred thirty-nine million, nine hundred ninety-six thousand, two hundred forty-seven".