27321750636 has 12 divisors (see below), whose sum is σ = 63750751512. Its totient is φ = 9107250208.

The previous prime is 27321750613. The next prime is 27321750649. The reversal of 27321750636 is 63605712372.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138406265 + ... + 1138406288.

It is an arithmetic number, because the mean of its divisors is an integer number (5312562626).

Almost surely, 2^27321750636 is an apocalyptic number.

It is an amenable number.

27321750636 is an abundant number, since it is smaller than the sum of its proper divisors (36429000876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27321750636 is a wasteful number, since it uses less digits than its factorization.

27321750636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276812560 (or 2276812558 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 42.

The spelling of 27321750636 in words is "twenty-seven billion, three hundred twenty-one million, seven hundred fifty thousand, six hundred thirty-six".