9420668911 has 2 divisors, whose sum is σ = 9420668912. Its totient is φ = 9420668910.

The previous prime is 9420668899. The next prime is 9420668951. The reversal of 9420668911 is 1198660249.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9420668911 - 2⁷ = 9420668783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9420668951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4710334455 + 4710334456.

It is an arithmetic number, because the mean of its divisors is an integer number (4710334456).

Almost surely, 2^9420668911 is an apocalyptic number.

9420668911 is a deficient number, since it is larger than the sum of its proper divisors (1).

9420668911 is an equidigital number, since it uses as much as digits as its factorization.

9420668911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 9420668911 is about 97060.1303883320. The cubic root of 9420668911 is about 2111.9999987296. Note that the first 5 decimals are identical.

The spelling of 9420668911 in words is "nine billion, four hundred twenty million, six hundred sixty-eight thousand, nine hundred eleven".