27853432468 has 24 divisors (see below), whose sum is σ = 51628148712. Its totient is φ = 13103084544.

The previous prime is 27853432463. The next prime is 27853432487. The reversal of 27853432468 is 86423435872.

It can be written as a sum of positive squares in 4 ways, for example, as 11098201104 + 16755231364 = 105348^2 + 129442^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27853432463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139080 + ... + 273952.

It is an arithmetic number, because the mean of its divisors is an integer number (2151172863).

Almost surely, 2^27853432468 is an apocalyptic number.

It is an amenable number.

27853432468 is a deficient number, since it is larger than the sum of its proper divisors (23774716244).

27853432468 is a wasteful number, since it uses less digits than its factorization.

27853432468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137931 (or 137929 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 52.

The spelling of 27853432468 in words is "twenty-seven billion, eight hundred fifty-three million, four hundred thirty-two thousand, four hundred sixty-eight".