27777675468 has 12 divisors (see below), whose sum is σ = 64814576120. Its totient is φ = 9259225152.

The previous prime is 27777675467. The next prime is 27777675473. The reversal of 27777675468 is 86457677772.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 27777675399 and 27777675408.

It is not an unprimeable number, because it can be changed into a prime (27777675467) 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, 1157403133 + ... + 1157403156.

Almost surely, 2^27777675468 is an apocalyptic number.

It is an amenable number.

27777675468 is an abundant number, since it is smaller than the sum of its proper divisors (37036900652).

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

27777675468 is a wasteful number, since it uses less digits than its factorization.

27777675468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314806296 (or 2314806294 counting only the distinct ones).

The product of its digits is 193616640, while the sum is 66.

The spelling of 27777675468 in words is "twenty-seven billion, seven hundred seventy-seven million, six hundred seventy-five thousand, four hundred sixty-eight".