26423123663 has 2 divisors, whose sum is σ = 26423123664. Its totient is φ = 26423123662.

The previous prime is 26423123653. The next prime is 26423123693. The reversal of 26423123663 is 36632132462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26423123663 - 2¹⁶ = 26423058127 is a prime.

It is a super-2 number, since 2×26423123663² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26423123653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13211561831 + 13211561832.

It is an arithmetic number, because the mean of its divisors is an integer number (13211561832).

Almost surely, 2^26423123663 is an apocalyptic number.

26423123663 is a deficient number, since it is larger than the sum of its proper divisors (1).

26423123663 is an equidigital number, since it uses as much as digits as its factorization.

26423123663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 38.

The spelling of 26423123663 in words is "twenty-six billion, four hundred twenty-three million, one hundred twenty-three thousand, six hundred sixty-three".