3946583420872 has 32 divisors (see below), whose sum is σ = 7794670665600. Its totient is φ = 1868147544384.

The previous prime is 3946583420821. The next prime is 3946583420909. The reversal of 3946583420872 is 2780243856493.

It is a self number, because there is not a number n which added to its sum of digits gives 3946583420872.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8713888 + ... + 9155599.

It is an arithmetic number, because the mean of its divisors is an integer number (243583458300).

Almost surely, 2^{3946583420872} is an apocalyptic number.

It is an amenable number.

3946583420872 is a deficient number, since it is larger than the sum of its proper divisors (3848087244728).

3946583420872 is a wasteful number, since it uses less digits than its factorization.

3946583420872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17870965 (or 17870961 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 61.

The spelling of 3946583420872 in words is "three trillion, nine hundred forty-six billion, five hundred eighty-three million, four hundred twenty thousand, eight hundred seventy-two".