3925903921612 has 12 divisors (see below), whose sum is σ = 6870577840056. Its totient is φ = 1962881681600.

The previous prime is 3925903921609. The next prime is 3925903921627. The reversal of 3925903921612 is 2161293095293.

It is a self number, because there is not a number n which added to its sum of digits gives 3925903921612.

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 3 ways as a sum of consecutive naturals, for example, 17444014 + ... + 17667637.

It is an arithmetic number, because the mean of its divisors is an integer number (572548153338).

Almost surely, 2^{3925903921612} is an apocalyptic number.

It is an amenable number.

3925903921612 is a deficient number, since it is larger than the sum of its proper divisors (2944673918444).

3925903921612 is a wasteful number, since it uses less digits than its factorization.

3925903921612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35139608 (or 35139606 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 52.

The spelling of 3925903921612 in words is "three trillion, nine hundred twenty-five billion, nine hundred three million, nine hundred twenty-one thousand, six hundred twelve".