264319447643 has 2 divisors, whose sum is σ = 264319447644. Its totient is φ = 264319447642.

The previous prime is 264319447633. The next prime is 264319447687. The reversal of 264319447643 is 346744913462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264319447643 - 2²⁴ = 264302670427 is a prime.

It is not a weakly prime, because it can be changed into another prime (264319447603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132159723821 + 132159723822.

It is an arithmetic number, because the mean of its divisors is an integer number (132159723822).

Almost surely, 2^264319447643 is an apocalyptic number.

264319447643 is a deficient number, since it is larger than the sum of its proper divisors (1).

264319447643 is an equidigital number, since it uses as much as digits as its factorization.

264319447643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 53.

The spelling of 264319447643 in words is "two hundred sixty-four billion, three hundred nineteen million, four hundred forty-seven thousand, six hundred forty-three".