3966625912 has 32 divisors (see below), whose sum is σ = 8042483520. Its totient is φ = 1826928640.

The previous prime is 3966625909. The next prime is 3966625913. The reversal of 3966625912 is 2195266693.

It is a happy number.

It is a super-2 number, since 2×3966625912² = 31468242251499663488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966625913) 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, 303889 + ... + 316672.

It is an arithmetic number, because the mean of its divisors is an integer number (251327610).

Almost surely, 2^3966625912 is an apocalyptic number.

It is an amenable number.

3966625912 is an abundant number, since it is smaller than the sum of its proper divisors (4075857608).

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

3966625912 is a wasteful number, since it uses less digits than its factorization.

3966625912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620631 (or 620627 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 49.

The square root of 3966625912 is about 62981.1552132858. The cubic root of 3966625912 is about 1582.9738777681.

The spelling of 3966625912 in words is "three billion, nine hundred sixty-six million, six hundred twenty-five thousand, nine hundred twelve".