26676621193 has 2 divisors, whose sum is σ = 26676621194. Its totient is φ = 26676621192.

The previous prime is 26676621149. The next prime is 26676621197. The reversal of 26676621193 is 39112667662.

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., 26403975049 + 272646144 = 162493^2 + 16512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26676621193 is a prime.

It is not a weakly prime, because it can be changed into another prime (26676621197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13338310596 + 13338310597.

It is an arithmetic number, because the mean of its divisors is an integer number (13338310597).

Almost surely, 2^26676621193 is an apocalyptic number.

It is an amenable number.

26676621193 is a deficient number, since it is larger than the sum of its proper divisors (1).

26676621193 is an equidigital number, since it uses as much as digits as its factorization.

26676621193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 49.

The spelling of 26676621193 in words is "twenty-six billion, six hundred seventy-six million, six hundred twenty-one thousand, one hundred ninety-three".