3965881692 has 24 divisors (see below), whose sum is σ = 9262039696. Its totient is φ = 1320772608.

The previous prime is 3965881687. The next prime is 3965881693. The reversal of 3965881692 is 2961885693.

3965881692 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965881693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134533 + ... + 161340.

Almost surely, 2^3965881692 is an apocalyptic number.

It is an amenable number.

3965881692 is an abundant number, since it is smaller than the sum of its proper divisors (5296158004).

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

3965881692 is a wasteful number, since it uses less digits than its factorization.

3965881692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296997 (or 296995 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 57.

The square root of 3965881692 is about 62975.2466608905. The cubic root of 3965881692 is about 1582.8748721707.

The spelling of 3965881692 in words is "three billion, nine hundred sixty-five million, eight hundred eighty-one thousand, six hundred ninety-two".