27986022154879 has 2 divisors, whose sum is σ = 27986022154880. Its totient is φ = 27986022154878.

The previous prime is 27986022154861. The next prime is 27986022154907. The reversal of 27986022154879 is 97845122068972.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27986022154879 - 2¹⁵ = 27986022122111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27986022154859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13993011077439 + 13993011077440.

It is an arithmetic number, because the mean of its divisors is an integer number (13993011077440).

Almost surely, 2^{27986022154879} is an apocalyptic number.

27986022154879 is a deficient number, since it is larger than the sum of its proper divisors (1).

27986022154879 is an equidigital number, since it uses as much as digits as its factorization.

27986022154879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243855360, while the sum is 70.

The spelling of 27986022154879 in words is "twenty-seven trillion, nine hundred eighty-six billion, twenty-two million, one hundred fifty-four thousand, eight hundred seventy-nine".