26446006849 has 2 divisors, whose sum is σ = 26446006850. Its totient is φ = 26446006848.

The previous prime is 26446006781. The next prime is 26446006877. The reversal of 26446006849 is 94860064462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23121331249 + 3324675600 = 152057^2 + 57660^2 .

It is a cyclic number.

It is not a de Polignac number, because 26446006849 - 2¹¹ = 26446004801 is a prime.

It is not a weakly prime, because it can be changed into another prime (26446006649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13223003424 + 13223003425.

It is an arithmetic number, because the mean of its divisors is an integer number (13223003425).

Almost surely, 2^26446006849 is an apocalyptic number.

It is an amenable number.

26446006849 is a deficient number, since it is larger than the sum of its proper divisors (1).

26446006849 is an equidigital number, since it uses as much as digits as its factorization.

26446006849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 26446006849 in words is "twenty-six billion, four hundred forty-six million, six thousand, eight hundred forty-nine".