7904020440212 has 24 divisors (see below), whose sum is σ = 15772276083816. Its totient is φ = 3433420643328.

The previous prime is 7904020440203. The next prime is 7904020440233. The reversal of 7904020440212 is 2120440204097.

It can be written as a sum of positive squares in 4 ways, for example, as 1978174738576 + 5925845701636 = 1406476^2 + 2434306^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4470598913 + ... + 4470600680.

It is an arithmetic number, because the mean of its divisors is an integer number (657178170159).

Almost surely, 2^{7904020440212} is an apocalyptic number.

It is an amenable number.

7904020440212 is a deficient number, since it is larger than the sum of its proper divisors (7868255643604).

7904020440212 is a wasteful number, since it uses less digits than its factorization.

7904020440212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8941199627 (or 8941199625 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 7904020440212 in words is "seven trillion, nine hundred four billion, twenty million, four hundred forty thousand, two hundred twelve".