26533304623081 has 2 divisors, whose sum is σ = 26533304623082. Its totient is φ = 26533304623080.

The previous prime is 26533304622983. The next prime is 26533304623103. The reversal of 26533304623081 is 18032640333562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13587952481856 + 12945352141225 = 3686184^2 + 3597965^2 .

It is a cyclic number.

It is not a de Polignac number, because 26533304623081 - 2²¹ = 26533302525929 is a prime.

It is a super-2 number, since 2×26533304623081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26533304624081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13266652311540 + 13266652311541.

It is an arithmetic number, because the mean of its divisors is an integer number (13266652311541).

Almost surely, 2^{26533304623081} is an apocalyptic number.

It is an amenable number.

26533304623081 is a deficient number, since it is larger than the sum of its proper divisors (1).

26533304623081 is an equidigital number, since it uses as much as digits as its factorization.

26533304623081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 26533304623081 in words is "twenty-six trillion, five hundred thirty-three billion, three hundred four million, six hundred twenty-three thousand, eighty-one".