27638067788 has 24 divisors (see below), whose sum is σ = 48475161840. Its totient is φ = 13788054720.

The previous prime is 27638067731. The next prime is 27638067817. The reversal of 27638067788 is 88776083672.

It is a super-3 number, since 3×27638067788³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 27638067788.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4727195 + ... + 4733037.

It is an arithmetic number, because the mean of its divisors is an integer number (2019798410).

Almost surely, 2^27638067788 is an apocalyptic number.

It is an amenable number.

27638067788 is a deficient number, since it is larger than the sum of its proper divisors (20837094052).

27638067788 is a wasteful number, since it uses less digits than its factorization.

27638067788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8297 (or 8295 counting only the distinct ones).

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

The spelling of 27638067788 in words is "twenty-seven billion, six hundred thirty-eight million, sixty-seven thousand, seven hundred eighty-eight".