827399041812 has 48 divisors (see below), whose sum is σ = 2451552718720. Its totient is φ = 236399726016.

The previous prime is 827399041811. The next prime is 827399041837. The reversal of 827399041812 is 218140993728.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827399041811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547220833 + ... + 547222344.

Almost surely, 2^827399041812 is an apocalyptic number.

It is an amenable number.

827399041812 is an abundant number, since it is smaller than the sum of its proper divisors (1624153676908).

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

827399041812 is a wasteful number, since it uses less digits than its factorization.

827399041812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094443197 (or 1094443189 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 827399041812 in words is "eight hundred twenty-seven billion, three hundred ninety-nine million, forty-one thousand, eight hundred twelve".