27903549664 has 12 divisors (see below), whose sum is σ = 54935113464. Its totient is φ = 13951774816.

The previous prime is 27903549659. The next prime is 27903549683. The reversal of 27903549664 is 46694530972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435992932 + ... + 435992995.

It is an arithmetic number, because the mean of its divisors is an integer number (4577926122).

Almost surely, 2^27903549664 is an apocalyptic number.

It is an amenable number.

27903549664 is a deficient number, since it is larger than the sum of its proper divisors (27031563800).

27903549664 is an equidigital number, since it uses as much as digits as its factorization.

27903549664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871985937 (or 871985929 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 27903549664 in words is "twenty-seven billion, nine hundred three million, five hundred forty-nine thousand, six hundred sixty-four".