3858115811 has 8 divisors (see below), whose sum is σ = 4262131200. Its totient is φ = 3462980040.

The previous prime is 3858115801. The next prime is 3858115823. The reversal of 3858115811 is 1185118583.

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 3858115811 - 2⁶ = 3858115747 is a prime.

It is a super-2 number, since 2×3858115811² = 29770115222176375442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3858115801) by changing a digit.

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, 2218991 + ... + 2220728.

It is an arithmetic number, because the mean of its divisors is an integer number (532766400).

Almost surely, 2^3858115811 is an apocalyptic number.

3858115811 is a deficient number, since it is larger than the sum of its proper divisors (404015389).

3858115811 is a wasteful number, since it uses less digits than its factorization.

3858115811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439809.

The product of its digits is 38400, while the sum is 41.

The square root of 3858115811 is about 62113.7328696320. The cubic root of 3858115811 is about 1568.4057289199.

The spelling of 3858115811 in words is "three billion, eight hundred fifty-eight million, one hundred fifteen thousand, eight hundred eleven".