27671232064 has 56 divisors (see below), whose sum is σ = 64918376640. Its totient is φ = 11450159616.

The previous prime is 27671232053. The next prime is 27671232109. The reversal of 27671232064 is 46023217672.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

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, 1051942 + ... + 1077925.

Almost surely, 2^27671232064 is an apocalyptic number.

It is an amenable number.

27671232064 is an abundant number, since it is smaller than the sum of its proper divisors (37247144576).

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

27671232064 is a wasteful number, since it uses less digits than its factorization.

27671232064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129915 (or 2129905 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 27671232064 in words is "twenty-seven billion, six hundred seventy-one million, two hundred thirty-two thousand, sixty-four".