4061491811 has 8 divisors (see below), whose sum is σ = 4631203584. Its totient is φ = 3528535680.

The previous prime is 4061491787. The next prime is 4061491849. The reversal of 4061491811 is 1181941604.

4061491811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4061491811 - 2³⁰ = 2987749987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4061491111) 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, 9188675 + ... + 9189116.

It is an arithmetic number, because the mean of its divisors is an integer number (578900448).

Almost surely, 2^4061491811 is an apocalyptic number.

4061491811 is a deficient number, since it is larger than the sum of its proper divisors (569711773).

4061491811 is a wasteful number, since it uses less digits than its factorization.

4061491811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18377821.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 4061491811 is about 63729.8345439559. The cubic root of 4061491811 is about 1595.4940684995.

The spelling of 4061491811 in words is "four billion, sixty-one million, four hundred ninety-one thousand, eight hundred eleven".