27664631422 has 16 divisors (see below), whose sum is σ = 42587463600. Its totient is φ = 13473112320.

The previous prime is 27664631321. The next prime is 27664631429. The reversal of 27664631422 is 22413646672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27664631429) 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 in 7 ways as a sum of consecutive naturals, for example, 1062579 + ... + 1088302.

It is an arithmetic number, because the mean of its divisors is an integer number (2661716475).

Almost surely, 2^27664631422 is an apocalyptic number.

27664631422 is a deficient number, since it is larger than the sum of its proper divisors (14922832178).

27664631422 is a wasteful number, since it uses less digits than its factorization.

27664631422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151051.

The product of its digits is 580608, while the sum is 43.

The spelling of 27664631422 in words is "twenty-seven billion, six hundred sixty-four million, six hundred thirty-one thousand, four hundred twenty-two".