27945509911199 has 8 divisors (see below), whose sum is σ = 28367291228640. Its totient is φ = 27524781732096.

The previous prime is 27945509911169. The next prime is 27945509911201. The reversal of 27945509911199 is 99111990554972.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27945509911199 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 (27945509911159) 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, 263231114 + ... + 263337255.

It is an arithmetic number, because the mean of its divisors is an integer number (3545911403580).

Almost surely, 2^{27945509911199} is an apocalyptic number.

27945509911199 is a deficient number, since it is larger than the sum of its proper divisors (421781317441).

27945509911199 is an equidigital number, since it uses as much as digits as its factorization.

27945509911199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526569169.

The product of its (nonzero) digits is 82668600, while the sum is 71.

The spelling of 27945509911199 in words is "twenty-seven trillion, nine hundred forty-five billion, five hundred nine million, nine hundred eleven thousand, one hundred ninety-nine".