27661814984 has 16 divisors (see below), whose sum is σ = 54120942720. Its totient is φ = 13229563600.

The previous prime is 27661814953. The next prime is 27661814987. The reversal of 27661814984 is 48941816672.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27661814987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75167792 + ... + 75168159.

It is an arithmetic number, because the mean of its divisors is an integer number (3382558920).

Almost surely, 2^27661814984 is an apocalyptic number.

It is an amenable number.

27661814984 is a deficient number, since it is larger than the sum of its proper divisors (26459127736).

27661814984 is a wasteful number, since it uses less digits than its factorization.

27661814984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150335980 (or 150335976 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The spelling of 27661814984 in words is "twenty-seven billion, six hundred sixty-one million, eight hundred fourteen thousand, nine hundred eighty-four".