27321529672 has 16 divisors (see below), whose sum is σ = 51447733740. Its totient is φ = 13602134016.

The previous prime is 27321529657. The next prime is 27321529691. The reversal of 27321529672 is 27692512372.

It can be written as a sum of positive squares in 2 ways, for example, as 27312850756 + 8678916 = 165266^2 + 2946^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7326873 + ... + 7330600.

Almost surely, 2^27321529672 is an apocalyptic number.

It is an amenable number.

27321529672 is a deficient number, since it is larger than the sum of its proper divisors (24126204068).

27321529672 is a wasteful number, since it uses less digits than its factorization.

27321529672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14657712 (or 14657708 counting only the distinct ones).

The product of its digits is 635040, while the sum is 46.

The spelling of 27321529672 in words is "twenty-seven billion, three hundred twenty-one million, five hundred twenty-nine thousand, six hundred seventy-two".