3938263063812 has 216 divisors, whose sum is σ = 13101024998880. Its totient is φ = 1022925335040.

The previous prime is 3938263063811. The next prime is 3938263063837. The reversal of 3938263063812 is 2183603628393.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3938263063811) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3234637 + ... + 4282452.

Almost surely, 2^{3938263063812} is an apocalyptic number.

It is an amenable number.

3938263063812 is an abundant number, since it is smaller than the sum of its proper divisors (9162761935068).

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

3938263063812 is a wasteful number, since it uses less digits than its factorization.

3938263063812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7517133 (or 7517112 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 3938263063812 in words is "three trillion, nine hundred thirty-eight billion, two hundred sixty-three million, sixty-three thousand, eight hundred twelve".