26866460621233 has 2 divisors, whose sum is σ = 26866460621234. Its totient is φ = 26866460621232.

The previous prime is 26866460621219. The next prime is 26866460621239. The reversal of 26866460621233 is 33212606466862.

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., 17458082254369 + 9408378366864 = 4178287^2 + 3067308^2 .

It is a cyclic number.

It is not a de Polignac number, because 26866460621233 - 2⁵ = 26866460621201 is a prime.

It is a super-3 number, since 3×26866460621233³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (26866460621239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13433230310616 + 13433230310617.

It is an arithmetic number, because the mean of its divisors is an integer number (13433230310617).

Almost surely, 2^{26866460621233} is an apocalyptic number.

It is an amenable number.

26866460621233 is a deficient number, since it is larger than the sum of its proper divisors (1).

26866460621233 is an equidigital number, since it uses as much as digits as its factorization.

26866460621233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17915904, while the sum is 55.

The spelling of 26866460621233 in words is "twenty-six trillion, eight hundred sixty-six billion, four hundred sixty million, six hundred twenty-one thousand, two hundred thirty-three".