27700563968 has 156 divisors (see below), whose sum is σ = 70301976912. Its totient is φ = 10791567360.

The previous prime is 27700563953. The next prime is 27700563973. The reversal of 27700563968 is 86936500772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2201471 + ... + 2214017.

Almost surely, 2^27700563968 is an apocalyptic number.

27700563968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27700563968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35150988456).

27700563968 is an abundant number, since it is smaller than the sum of its proper divisors (42601412944).

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

27700563968 is a wasteful number, since it uses less digits than its factorization.

27700563968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12596 (or 12567 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 27700563968 in words is "twenty-seven billion, seven hundred million, five hundred sixty-three thousand, nine hundred sixty-eight".