27986808097619 has 24 divisors (see below), whose sum is σ = 33249692556288. Its totient is φ = 23477640313680.

The previous prime is 27986808097609. The next prime is 27986808097621. The reversal of 27986808097619 is 91679080868972.

It is not a de Polignac number, because 27986808097619 - 2¹² = 27986808093523 is a prime.

It is a super-2 number, since 2×27986808097619² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27986808097609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93746582 + ... + 94044644.

It is an arithmetic number, because the mean of its divisors is an integer number (1385403856512).

Almost surely, 2^{27986808097619} is an apocalyptic number.

27986808097619 is a deficient number, since it is larger than the sum of its proper divisors (5262884458669).

27986808097619 is a wasteful number, since it uses less digits than its factorization.

27986808097619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338895 (or 338888 counting only the distinct ones).

The product of its (nonzero) digits is 1316818944, while the sum is 80.

The spelling of 27986808097619 in words is "twenty-seven trillion, nine hundred eighty-six billion, eight hundred eight million, ninety-seven thousand, six hundred nineteen".