27813982379 has 2 divisors, whose sum is σ = 27813982380. Its totient is φ = 27813982378.

The previous prime is 27813982367. The next prime is 27813982403. The reversal of 27813982379 is 97328931872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27813982379 - 2¹⁶ = 27813916843 is a prime.

It is a super-4 number, since 4×27813982379⁴ (a number of 43 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (27813981379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13906991189 + 13906991190.

It is an arithmetic number, because the mean of its divisors is an integer number (13906991190).

Almost surely, 2^27813982379 is an apocalyptic number.

27813982379 is a deficient number, since it is larger than the sum of its proper divisors (1).

27813982379 is an equidigital number, since it uses as much as digits as its factorization.

27813982379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 59.

The spelling of 27813982379 in words is "twenty-seven billion, eight hundred thirteen million, nine hundred eighty-two thousand, three hundred seventy-nine".