27396894479 has 2 divisors, whose sum is σ = 27396894480. Its totient is φ = 27396894478.

The previous prime is 27396894451. The next prime is 27396894517. The reversal of 27396894479 is 97449869372.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27396894479 - 2¹² = 27396890383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27396894439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13698447239 + 13698447240.

It is an arithmetic number, because the mean of its divisors is an integer number (13698447240).

Almost surely, 2^27396894479 is an apocalyptic number.

27396894479 is a deficient number, since it is larger than the sum of its proper divisors (1).

27396894479 is an equidigital number, since it uses as much as digits as its factorization.

27396894479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164602368, while the sum is 68.

The spelling of 27396894479 in words is "twenty-seven billion, three hundred ninety-six million, eight hundred ninety-four thousand, four hundred seventy-nine".