3968636980 has 48 divisors (see below), whose sum is σ = 10390617216. Its totient is φ = 1236977280.

The previous prime is 3968636933. The next prime is 3968636993. The reversal of 3968636980 is 896368693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1286979 + ... + 1290058.

It is an arithmetic number, because the mean of its divisors is an integer number (216471192).

Almost surely, 2^3968636980 is an apocalyptic number.

It is an amenable number.

3968636980 is an abundant number, since it is smaller than the sum of its proper divisors (6421980236).

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

3968636980 is a wasteful number, since it uses less digits than its factorization.

3968636980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577064 (or 2577062 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 58.

The square root of 3968636980 is about 62997.1188230065. The cubic root of 3968636980 is about 1583.2413536472.

The spelling of 3968636980 in words is "three billion, nine hundred sixty-eight million, six hundred thirty-six thousand, nine hundred eighty".