27833011812 has 36 divisors (see below), whose sum is σ = 72781729020. Its totient is φ = 8957750592.

The previous prime is 27833011793. The next prime is 27833011823. The reversal of 27833011812 is 21811033872.

27833011812 is a `hidden beast` number, since 278 + 3 + 301 + 1 + 81 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7112560896 + 20720450916 = 84336^2 + 143946^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13328943 + ... + 13331030.

It is an arithmetic number, because the mean of its divisors is an integer number (2021714695).

Almost surely, 2^27833011812 is an apocalyptic number.

It is an amenable number.

27833011812 is an abundant number, since it is smaller than the sum of its proper divisors (44948717208).

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

27833011812 is a wasteful number, since it uses less digits than its factorization.

27833011812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26660012 (or 26660007 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 27833011812 in words is "twenty-seven billion, eight hundred thirty-three million, eleven thousand, eight hundred twelve".