27227667499 has 4 divisors (see below), whose sum is σ = 27634050664. Its totient is φ = 26821284336.

The previous prime is 27227667497. The next prime is 27227667547. The reversal of 27227667499 is 99476672272.

It is a happy number.

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 27227667499 - 2¹ = 27227667497 is a prime.

It is a super-2 number, since 2×27227667499² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27227667497) 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, 203191482 + ... + 203191615.

It is an arithmetic number, because the mean of its divisors is an integer number (6908512666).

Almost surely, 2^27227667499 is an apocalyptic number.

27227667499 is a deficient number, since it is larger than the sum of its proper divisors (406383165).

27227667499 is an equidigital number, since it uses as much as digits as its factorization.

27227667499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406383164.

The product of its digits is 32006016, while the sum is 61.

The spelling of 27227667499 in words is "twenty-seven billion, two hundred twenty-seven million, six hundred sixty-seven thousand, four hundred ninety-nine".