27732231979 has 2 divisors, whose sum is σ = 27732231980. Its totient is φ = 27732231978.

The previous prime is 27732231973. The next prime is 27732232009. The reversal of 27732231979 is 97913223772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27732231979 - 2¹³ = 27732223787 is a prime.

It is not a weakly prime, because it can be changed into another prime (27732231973) 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 as a sum of consecutive naturals, namely, 13866115989 + 13866115990.

It is an arithmetic number, because the mean of its divisors is an integer number (13866115990).

Almost surely, 2^27732231979 is an apocalyptic number.

27732231979 is a deficient number, since it is larger than the sum of its proper divisors (1).

27732231979 is an equidigital number, since it uses as much as digits as its factorization.

27732231979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2000376, while the sum is 52.

The spelling of 27732231979 in words is "twenty-seven billion, seven hundred thirty-two million, two hundred thirty-one thousand, nine hundred seventy-nine".