27776864052 has 72 divisors (see below), whose sum is σ = 80314118976. Its totient is φ = 7929339264.

The previous prime is 27776864033. The next prime is 27776864053. The reversal of 27776864052 is 25046867772.

It is a self number, because there is not a number n which added to its sum of digits gives 27776864052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27776864053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245688 + ... + 340464.

Almost surely, 2^27776864052 is an apocalyptic number.

It is an amenable number.

27776864052 is an abundant number, since it is smaller than the sum of its proper divisors (52537254924).

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

27776864052 is a wasteful number, since it uses less digits than its factorization.

27776864052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95957 (or 95952 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 54.

The spelling of 27776864052 in words is "twenty-seven billion, seven hundred seventy-six million, eight hundred sixty-four thousand, fifty-two".