27968407784 has 16 divisors (see below), whose sum is σ = 53660317920. Its totient is φ = 13658989680.

The previous prime is 27968407763. The next prime is 27968407799. The reversal of 27968407784 is 48770486972.

It is a super-3 number, since 3×27968407784³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40651412 + ... + 40652099.

It is an arithmetic number, because the mean of its divisors is an integer number (3353769870).

Almost surely, 2^27968407784 is an apocalyptic number.

It is an amenable number.

27968407784 is a deficient number, since it is larger than the sum of its proper divisors (25691910136).

27968407784 is a wasteful number, since it uses less digits than its factorization.

27968407784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81303560 (or 81303556 counting only the distinct ones).

The product of its (nonzero) digits is 37933056, while the sum is 62.

The spelling of 27968407784 in words is "twenty-seven billion, nine hundred sixty-eight million, four hundred seven thousand, seven hundred eighty-four".