26730668123 has 2 divisors, whose sum is σ = 26730668124. Its totient is φ = 26730668122.

The previous prime is 26730668119. The next prime is 26730668257. The reversal of 26730668123 is 32186603762.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26730668123 - 2² = 26730668119 is a prime.

It is not a weakly prime, because it can be changed into another prime (26730668113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13365334061 + 13365334062.

It is an arithmetic number, because the mean of its divisors is an integer number (13365334062).

Almost surely, 2^26730668123 is an apocalyptic number.

26730668123 is a deficient number, since it is larger than the sum of its proper divisors (1).

26730668123 is an equidigital number, since it uses as much as digits as its factorization.

26730668123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 26730668123 in words is "twenty-six billion, seven hundred thirty million, six hundred sixty-eight thousand, one hundred twenty-three".