27706769499 has 4 divisors (see below), whose sum is σ = 36942359336. Its totient is φ = 18471179664.

The previous prime is 27706769483. The next prime is 27706769527. The reversal of 27706769499 is 99496760772.

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

It is not a de Polignac number, because 27706769499 - 2⁴ = 27706769483 is a prime.

It is a super-2 number, since 2×27706769499² (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 (27706769449) 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, 4617794914 + ... + 4617794919.

It is an arithmetic number, because the mean of its divisors is an integer number (9235589834).

Almost surely, 2^27706769499 is an apocalyptic number.

27706769499 is a deficient number, since it is larger than the sum of its proper divisors (9235589837).

27706769499 is an equidigital number, since it uses as much as digits as its factorization.

27706769499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9235589836.

The product of its (nonzero) digits is 72013536, while the sum is 66.

The spelling of 27706769499 in words is "twenty-seven billion, seven hundred six million, seven hundred sixty-nine thousand, four hundred ninety-nine".