3915508065 has 32 divisors (see below), whose sum is σ = 7172478720. Its totient is φ = 1786773504.

The previous prime is 3915508057. The next prime is 3915508127. The reversal of 3915508065 is 5608055193.

3915508065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3915508065 - 2³ = 3915508057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26977 + ... + 92513.

It is an arithmetic number, because the mean of its divisors is an integer number (224139960).

Almost surely, 2^3915508065 is an apocalyptic number.

3915508065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3915508065 is a deficient number, since it is larger than the sum of its proper divisors (3256970655).

3915508065 is a wasteful number, since it uses less digits than its factorization.

3915508065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66121.

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 3915508065 is about 62574.0206875026. The cubic root of 3915508065 is about 1576.1445366819.

The spelling of 3915508065 in words is "three billion, nine hundred fifteen million, five hundred eight thousand, sixty-five".