27977083967 has 4 divisors (see below), whose sum is σ = 31973810256. Its totient is φ = 23980357680.

The previous prime is 27977083963. The next prime is 27977083969. The reversal of 27977083967 is 76938077972.

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 27977083967 - 2² = 27977083963 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 (27977083963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1998363134 + ... + 1998363147.

It is an arithmetic number, because the mean of its divisors is an integer number (7993452564).

Almost surely, 2^27977083967 is an apocalyptic number.

27977083967 is a deficient number, since it is larger than the sum of its proper divisors (3996726289).

27977083967 is an equidigital number, since it uses as much as digits as its factorization.

27977083967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996726288.

The product of its (nonzero) digits is 56010528, while the sum is 65.

The spelling of 27977083967 in words is "twenty-seven billion, nine hundred seventy-seven million, eighty-three thousand, nine hundred sixty-seven".