3811356816 has 40 divisors (see below), whose sum is σ = 9850869504. Its totient is φ = 1269824640.

The previous prime is 3811356797. The next prime is 3811356869. The reversal of 3811356816 is 6186531183.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84225 + ... + 121311.

Almost surely, 2^3811356816 is an apocalyptic number.

It is an amenable number.

3811356816 is an abundant number, since it is smaller than the sum of its proper divisors (6039512688).

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

3811356816 is a wasteful number, since it uses less digits than its factorization.

3811356816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39239 (or 39233 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 3811356816 is about 61736.1872486470. The cubic root of 3811356816 is about 1562.0437840857.

Adding to 3811356816 its reverse (6186531183), we get a palindrome (9997887999).

The spelling of 3811356816 in words is "three billion, eight hundred eleven million, three hundred fifty-six thousand, eight hundred sixteen".