3813899065 has 8 divisors (see below), whose sum is σ = 4577912640. Its totient is φ = 3050296752.

The previous prime is 3813899057. The next prime is 3813899071. The reversal of 3813899065 is 5609983183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3813899065 - 2³ = 3813899057 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82029 + ... + 119818.

It is an arithmetic number, because the mean of its divisors is an integer number (572239080).

Almost surely, 2^3813899065 is an apocalyptic number.

It is an amenable number.

3813899065 is a deficient number, since it is larger than the sum of its proper divisors (764013575).

3813899065 is a wasteful number, since it uses less digits than its factorization.

3813899065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205631.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 3813899065 is about 61756.7734341748. The cubic root of 3813899065 is about 1562.3910114059.

The spelling of 3813899065 in words is "three billion, eight hundred thirteen million, eight hundred ninety-nine thousand, sixty-five".