27287253652 has 24 divisors (see below), whose sum is σ = 48974725800. Its totient is φ = 13295255040.

The previous prime is 27287253641. The next prime is 27287253661. The reversal of 27287253652 is 25635278272.

It can be written as a sum of positive squares in 4 ways, for example, as 839056 + 27286414596 = 916^2 + 165186^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27287253596 and 27287253605.

It is a congruent number.

It is an unprimeable number.

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, 43474 + ... + 237622.

It is an arithmetic number, because the mean of its divisors is an integer number (2040613575).

Almost surely, 2^27287253652 is an apocalyptic number.

It is an amenable number.

27287253652 is a deficient number, since it is larger than the sum of its proper divisors (21687472148).

27287253652 is a wasteful number, since it uses less digits than its factorization.

27287253652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195051 (or 195049 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 49.

The spelling of 27287253652 in words is "twenty-seven billion, two hundred eighty-seven million, two hundred fifty-three thousand, six hundred fifty-two".