27409395499 has 4 divisors (see below), whose sum is σ = 27450862720. Its totient is φ = 27367928280.

The previous prime is 27409395493. The next prime is 27409395521. The reversal of 27409395499 is 99459390472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27409395499 - 2²³ = 27401006891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27409395493) 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 3 ways as a sum of consecutive naturals, for example, 20732619 + ... + 20733940.

It is an arithmetic number, because the mean of its divisors is an integer number (6862715680).

Almost surely, 2^27409395499 is an apocalyptic number.

27409395499 is a deficient number, since it is larger than the sum of its proper divisors (41467221).

27409395499 is an equidigital number, since it uses as much as digits as its factorization.

27409395499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41467220.

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 27409395499 in words is "twenty-seven billion, four hundred nine million, three hundred ninety-five thousand, four hundred ninety-nine".