3994026511 has 2 divisors, whose sum is σ = 3994026512. Its totient is φ = 3994026510.

The previous prime is 3994026497. The next prime is 3994026541. The reversal of 3994026511 is 1156204993.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3994026511 - 2⁹ = 3994025999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3994026541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1997013255 + 1997013256.

It is an arithmetic number, because the mean of its divisors is an integer number (1997013256).

Almost surely, 2^3994026511 is an apocalyptic number.

3994026511 is a deficient number, since it is larger than the sum of its proper divisors (1).

3994026511 is an equidigital number, since it uses as much as digits as its factorization.

3994026511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 3994026511 is about 63198.3109821774. The cubic root of 3994026511 is about 1586.6104647303.

The spelling of 3994026511 in words is "three billion, nine hundred ninety-four million, twenty-six thousand, five hundred eleven".