3918348513 has 48 divisors (see below), whose sum is σ = 6229379520. Its totient is φ = 2452778496.

The previous prime is 3918348503. The next prime is 3918348521. The reversal of 3918348513 is 3158438193.

3918348513 is a `hidden beast` number, since 3 + 91 + 8 + 3 + 48 + 513 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-3918348513 is a prime.

It is a super-2 number, since 2×3918348513² = 30706910138658622338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3918348503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2349706 + ... + 2351372.

It is an arithmetic number, because the mean of its divisors is an integer number (129778740).

Almost surely, 2^3918348513 is an apocalyptic number.

It is an amenable number.

3918348513 is a deficient number, since it is larger than the sum of its proper divisors (2311031007).

3918348513 is a wasteful number, since it uses less digits than its factorization.

3918348513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268 (or 2256 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 3918348513 is about 62596.7132763374. The cubic root of 3918348513 is about 1576.5255748833.

The spelling of 3918348513 in words is "three billion, nine hundred eighteen million, three hundred forty-eight thousand, five hundred thirteen".