27631552220 has 12 divisors (see below), whose sum is σ = 58026259704. Its totient is φ = 11052620880.

The previous prime is 27631552219. The next prime is 27631552241. The reversal of 27631552220 is 2225513672.

It is a congruent number.

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, 690788786 + ... + 690788825.

It is an arithmetic number, because the mean of its divisors is an integer number (4835521642).

Almost surely, 2^27631552220 is an apocalyptic number.

27631552220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27631552220 is an abundant number, since it is smaller than the sum of its proper divisors (30394707484).

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

27631552220 is a wasteful number, since it uses less digits than its factorization.

27631552220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381577620 (or 1381577618 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 27631552220 in words is "twenty-seven billion, six hundred thirty-one million, five hundred fifty-two thousand, two hundred twenty".