264401277863 has 2 divisors, whose sum is σ = 264401277864. Its totient is φ = 264401277862.

The previous prime is 264401277823. The next prime is 264401277883. The reversal of 264401277863 is 368772104462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264401277863 - 2¹⁴ = 264401261479 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264401277823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132200638931 + 132200638932.

It is an arithmetic number, because the mean of its divisors is an integer number (132200638932).

Almost surely, 2^264401277863 is an apocalyptic number.

264401277863 is a deficient number, since it is larger than the sum of its proper divisors (1).

264401277863 is an equidigital number, since it uses as much as digits as its factorization.

264401277863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 264401277863 in words is "two hundred sixty-four billion, four hundred one million, two hundred seventy-seven thousand, eight hundred sixty-three".