27893051828 has 6 divisors (see below), whose sum is σ = 48812840706. Its totient is φ = 13946525912.

The previous prime is 27893051827. The next prime is 27893051831. The reversal of 27893051828 is 82815039872.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22753308964 + 5139742864 = 150842^2 + 71692^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27893051828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27893051827) 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 as a sum of consecutive naturals, namely, 3486631475 + ... + 3486631482.

It is an arithmetic number, because the mean of its divisors is an integer number (8135473451).

Almost surely, 2^27893051828 is an apocalyptic number.

It is an amenable number.

27893051828 is a deficient number, since it is larger than the sum of its proper divisors (20919788878).

27893051828 is a wasteful number, since it uses less digits than its factorization.

27893051828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6973262961 (or 6973262959 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 27893051828 in words is "twenty-seven billion, eight hundred ninety-three million, fifty-one thousand, eight hundred twenty-eight".