4006194385012 has 36 divisors (see below), whose sum is σ = 7449612331084. Its totient is φ = 1884733608960.

The previous prime is 4006194384971. The next prime is 4006194385019. The reversal of 4006194385012 is 2105834916004.

It can be written as a sum of positive squares in 6 ways, for example, as 1363859608336 + 2642334776676 = 1167844^2 + 1625526^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4006194385012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4006194385019) 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 11 ways as a sum of consecutive naturals, for example, 3604048 + ... + 4582744.

Almost surely, 2^{4006194385012} is an apocalyptic number.

It is an amenable number.

4006194385012 is a deficient number, since it is larger than the sum of its proper divisors (3443417946072).

4006194385012 is a wasteful number, since it uses less digits than its factorization.

4006194385012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982276 (or 982257 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 4006194385012 in words is "four trillion, six billion, one hundred ninety-four million, three hundred eighty-five thousand, twelve".