3905515216 has 20 divisors (see below), whose sum is σ = 7568017600. Its totient is φ = 1952478432.

The previous prime is 3905515127. The next prime is 3905515217. The reversal of 3905515216 is 6125155093.

3905515216 is digitally balanced in base 2, because in such base 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 (3905515217) 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, 142255 + ... + 167473.

It is an arithmetic number, because the mean of its divisors is an integer number (378400880).

Almost surely, 2^3905515216 is an apocalyptic number.

It is an amenable number.

3905515216 is a deficient number, since it is larger than the sum of its proper divisors (3662502384).

3905515216 is a wasteful number, since it uses less digits than its factorization.

3905515216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34906 (or 34900 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 3905515216 is about 62494.1214515413. The cubic root of 3905515216 is about 1574.8025573945.

The spelling of 3905515216 in words is "three billion, nine hundred five million, five hundred fifteen thousand, two hundred sixteen".