264362948261 has 2 divisors, whose sum is σ = 264362948262. Its totient is φ = 264362948260.

The previous prime is 264362948189. The next prime is 264362948341. The reversal of 264362948261 is 162849263462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195072388900 + 69290559361 = 441670^2 + 263231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264362948261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264362908261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132181474130 + 132181474131.

It is an arithmetic number, because the mean of its divisors is an integer number (132181474131).

Almost surely, 2^264362948261 is an apocalyptic number.

It is an amenable number.

264362948261 is a deficient number, since it is larger than the sum of its proper divisors (1).

264362948261 is an equidigital number, since it uses as much as digits as its factorization.

264362948261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5971968, while the sum is 53.

The spelling of 264362948261 in words is "two hundred sixty-four billion, three hundred sixty-two million, nine hundred forty-eight thousand, two hundred sixty-one".