264401277823 has 2 divisors, whose sum is σ = 264401277824. Its totient is φ = 264401277822.

The previous prime is 264401277817. The next prime is 264401277863. The reversal of 264401277823 is 328772104462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264401277823 - 2²⁵ = 264367723391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264401277863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132200638911 + 132200638912.

It is an arithmetic number, because the mean of its divisors is an integer number (132200638912).

Almost surely, 2^264401277823 is an apocalyptic number.

264401277823 is a deficient number, since it is larger than the sum of its proper divisors (1).

264401277823 is an equidigital number, since it uses as much as digits as its factorization.

264401277823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 264401277823 in words is "two hundred sixty-four billion, four hundred one million, two hundred seventy-seven thousand, eight hundred twenty-three".