4062811891 has 2 divisors, whose sum is σ = 4062811892. Its totient is φ = 4062811890.

The previous prime is 4062811873. The next prime is 4062811897. The reversal of 4062811891 is 1981182604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4062811891 - 2²³ = 4054423283 is a prime.

It is not a weakly prime, because it can be changed into another prime (4062811897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2031405945 + 2031405946.

It is an arithmetic number, because the mean of its divisors is an integer number (2031405946).

Almost surely, 2^4062811891 is an apocalyptic number.

4062811891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4062811891 is an equidigital number, since it uses as much as digits as its factorization.

4062811891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 4062811891 is about 63740.1905472521. The cubic root of 4062811891 is about 1595.6669074269. Note that the first 3 decimals are identical.

The spelling of 4062811891 in words is "four billion, sixty-two million, eight hundred eleven thousand, eight hundred ninety-one".