3996845768 has 8 divisors (see below), whose sum is σ = 7494085830. Its totient is φ = 1998422880.

The previous prime is 3996845759. The next prime is 3996845803. The reversal of 3996845768 is 8675486993.

3996845768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3614173924 + 382671844 = 60118^2 + 19562^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249802853 + ... + 249802868.

Almost surely, 2^3996845768 is an apocalyptic number.

It is an amenable number.

3996845768 is a deficient number, since it is larger than the sum of its proper divisors (3497240062).

3996845768 is a wasteful number, since it uses less digits than its factorization.

3996845768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499605727 (or 499605723 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 65.

The square root of 3996845768 is about 63220.6118920088. The cubic root of 3996845768 is about 1586.9836896446.

The spelling of 3996845768 in words is "three billion, nine hundred ninety-six million, eight hundred forty-five thousand, seven hundred sixty-eight".