3981945308304 has 40 divisors (see below), whose sum is σ = 10288227975552. Its totient is φ = 1327116918400.

The previous prime is 3981945308293. The next prime is 3981945308329. The reversal of 3981945308304 is 4038035491893.

It is a super-2 number, since 2×3981945308304² (a number of 26 digits) contains 22 as substring.

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, 5868264 + ... + 6511559.

Almost surely, 2^{3981945308304} is an apocalyptic number.

It is an amenable number.

3981945308304 is an abundant number, since it is smaller than the sum of its proper divisors (6306282667248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3981945308304 is a wasteful number, since it uses less digits than its factorization.

3981945308304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12386535 (or 12386529 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 3981945308304 in words is "three trillion, nine hundred eighty-one billion, nine hundred forty-five million, three hundred eight thousand, three hundred four".