3815813196 has 36 divisors (see below), whose sum is σ = 10387492752. Its totient is φ = 1174096224.

The previous prime is 3815813191. The next prime is 3815813203. The reversal of 3815813196 is 6913185183.

It is a happy number.

3815813196 is a `hidden beast` number, since 38 + 1 + 581 + 31 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (3815813191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4076256 + ... + 4077191.

Almost surely, 2^3815813196 is an apocalyptic number.

3815813196 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3815813196 is an abundant number, since it is smaller than the sum of its proper divisors (6571679556).

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

3815813196 is a wasteful number, since it uses less digits than its factorization.

3815813196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8153470 (or 8153465 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 3815813196 is about 61772.2688267154. The cubic root of 3815813196 is about 1562.6523468393.

The spelling of 3815813196 in words is "three billion, eight hundred fifteen million, eight hundred thirteen thousand, one hundred ninety-six".