3985398420796 has 24 divisors (see below), whose sum is σ = 7511206895360. Its totient is φ = 1839350071872.

The previous prime is 3985398420683. The next prime is 3985398420803. The reversal of 3985398420796 is 6970248935893.

It is a congruent number.

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, 165925 + ... + 2828131.

Almost surely, 2^{3985398420796} is an apocalyptic number.

It is an amenable number.

3985398420796 is a deficient number, since it is larger than the sum of its proper divisors (3525808474564).

3985398420796 is a wasteful number, since it uses less digits than its factorization.

3985398420796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691013 (or 2691011 counting only the distinct ones).

The product of its (nonzero) digits is 705438720, while the sum is 73.

The spelling of 3985398420796 in words is "three trillion, nine hundred eighty-five billion, three hundred ninety-eight million, four hundred twenty thousand, seven hundred ninety-six".