27671628660 has 48 divisors (see below), whose sum is σ = 83440605696. Its totient is φ = 6811477632.

The previous prime is 27671628641. The next prime is 27671628689. The reversal of 27671628660 is 6682617672.

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 15 ways as a sum of consecutive naturals, for example, 17737444 + ... + 17739003.

It is an arithmetic number, because the mean of its divisors is an integer number (1738345952).

Almost surely, 2^27671628660 is an apocalyptic number.

27671628660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27671628660 is an abundant number, since it is smaller than the sum of its proper divisors (55768977036).

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

27671628660 is a wasteful number, since it uses less digits than its factorization.

27671628660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35476472 (or 35476470 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 27671628660 in words is "twenty-seven billion, six hundred seventy-one million, six hundred twenty-eight thousand, six hundred sixty".