26630164009 has 2 divisors, whose sum is σ = 26630164010. Its totient is φ = 26630164008.

The previous prime is 26630163997. The next prime is 26630164013. The reversal of 26630164009 is 90046103662.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22341878784 + 4288285225 = 149472^2 + 65485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26630164009 is a prime.

It is not a weakly prime, because it can be changed into another prime (26630164049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13315082004 + 13315082005.

It is an arithmetic number, because the mean of its divisors is an integer number (13315082005).

Almost surely, 2^26630164009 is an apocalyptic number.

It is an amenable number.

26630164009 is a deficient number, since it is larger than the sum of its proper divisors (1).

26630164009 is an equidigital number, since it uses as much as digits as its factorization.

26630164009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 26630164009 in words is "twenty-six billion, six hundred thirty million, one hundred sixty-four thousand, nine".