4002011491 has 2 divisors, whose sum is σ = 4002011492. Its totient is φ = 4002011490.

The previous prime is 4002011459. The next prime is 4002011509. The reversal of 4002011491 is 1941102004.

4002011491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4002011491 - 2⁵ = 4002011459 is a prime.

It is not a weakly prime, because it can be changed into another prime (4002011441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001005745 + 2001005746.

It is an arithmetic number, because the mean of its divisors is an integer number (2001005746).

Almost surely, 2^4002011491 is an apocalyptic number.

4002011491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002011491 is an equidigital number, since it uses as much as digits as its factorization.

4002011491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 4002011491 is about 63261.4534373026. The cubic root of 4002011491 is about 1587.6670942888.

Adding to 4002011491 its reverse (1941102004), we get a palindrome (5943113495).

The spelling of 4002011491 in words is "four billion, two million, eleven thousand, four hundred ninety-one".