3963954864 has 20 divisors (see below), whose sum is σ = 10240216856. Its totient is φ = 1321318272.

The previous prime is 3963954851. The next prime is 3963954937. The reversal of 3963954864 is 4684593693.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41291149 + ... + 41291244.

Almost surely, 2^3963954864 is an apocalyptic number.

It is an amenable number.

3963954864 is an abundant number, since it is smaller than the sum of its proper divisors (6276261992).

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

3963954864 is a wasteful number, since it uses less digits than its factorization.

3963954864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82582404 (or 82582398 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 57.

The square root of 3963954864 is about 62959.9465056952. The cubic root of 3963954864 is about 1582.6184834757.

The spelling of 3963954864 in words is "three billion, nine hundred sixty-three million, nine hundred fifty-four thousand, eight hundred sixty-four".