27039557399 has 8 divisors (see below), whose sum is σ = 27975214560. Its totient is φ = 26104117536.

The previous prime is 27039557327. The next prime is 27039557401. The reversal of 27039557399 is 99375593072.

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

It is a de Polignac number, because none of the positive numbers 2^k-27039557399 is a prime.

It is a super-2 number, since 2×27039557399² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27039557099) 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, 222902 + ... + 322124.

It is an arithmetic number, because the mean of its divisors is an integer number (3496901820).

Almost surely, 2^27039557399 is an apocalyptic number.

27039557399 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

27039557399 is a deficient number, since it is larger than the sum of its proper divisors (935657161).

27039557399 is an equidigital number, since it uses as much as digits as its factorization.

27039557399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108649.

The product of its (nonzero) digits is 16074450, while the sum is 59.

The spelling of 27039557399 in words is "twenty-seven billion, thirty-nine million, five hundred fifty-seven thousand, three hundred ninety-nine".