3903131868 has 12 divisors (see below), whose sum is σ = 9107307720. Its totient is φ = 1301043952.

The previous prime is 3903131863. The next prime is 3903131917. The reversal of 3903131868 is 8681313093.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3903131861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162630483 + ... + 162630506.

It is an arithmetic number, because the mean of its divisors is an integer number (758942310).

Almost surely, 2^3903131868 is an apocalyptic number.

It is an amenable number.

3903131868 is an abundant number, since it is smaller than the sum of its proper divisors (5204175852).

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

3903131868 is a wasteful number, since it uses less digits than its factorization.

3903131868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325260996 (or 325260994 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 3903131868 is about 62475.0499639656. The cubic root of 3903131868 is about 1574.4821501359.

The spelling of 3903131868 in words is "three billion, nine hundred three million, one hundred thirty-one thousand, eight hundred sixty-eight".