3913186816 has 80 divisors (see below), whose sum is σ = 9748126080. Its totient is φ = 1524602880.

The previous prime is 3913186813. The next prime is 3913186817. The reversal of 3913186816 is 6186813193.

It is a happy number.

3913186816 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 (3913186813) 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, 10206 + ... + 89053.

It is an arithmetic number, because the mean of its divisors is an integer number (121851576).

Almost surely, 2^3913186816 is an apocalyptic number.

It is an amenable number.

3913186816 is an abundant number, since it is smaller than the sum of its proper divisors (5834939264).

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

3913186816 is an equidigital number, since it uses as much as digits as its factorization.

3913186816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99295 (or 99279 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 3913186816 is about 62555.4699127103. The cubic root of 3913186816 is about 1575.8330107281.

The spelling of 3913186816 in words is "three billion, nine hundred thirteen million, one hundred eighty-six thousand, eight hundred sixteen".