3811371811 has 8 divisors (see below), whose sum is σ = 4105056704. Its totient is φ = 3517758720.

The previous prime is 3811371793. The next prime is 3811371841. The reversal of 3811371811 is 1181731183.

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 3811371811 - 2⁹ = 3811371299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3811371841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151846 + ... + 175156.

It is an arithmetic number, because the mean of its divisors is an integer number (513132088).

Almost surely, 2^3811371811 is an apocalyptic number.

3811371811 is a deficient number, since it is larger than the sum of its proper divisors (293684893).

3811371811 is a wasteful number, since it uses less digits than its factorization.

3811371811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35901.

The product of its digits is 4032, while the sum is 34.

The square root of 3811371811 is about 61736.3086926972. The cubic root of 3811371811 is about 1562.0458325965.

The spelling of 3811371811 in words is "three billion, eight hundred eleven million, three hundred seventy-one thousand, eight hundred eleven".