264400321441 has 2 divisors, whose sum is σ = 264400321442. Its totient is φ = 264400321440.

The previous prime is 264400321357. The next prime is 264400321463. The reversal of 264400321441 is 144123004462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214087588416 + 50312733025 = 462696^2 + 224305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264400321441 is a prime.

It is not a weakly prime, because it can be changed into another prime (264400322441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132200160720 + 132200160721.

It is an arithmetic number, because the mean of its divisors is an integer number (132200160721).

Almost surely, 2^264400321441 is an apocalyptic number.

It is an amenable number.

264400321441 is a deficient number, since it is larger than the sum of its proper divisors (1).

264400321441 is an equidigital number, since it uses as much as digits as its factorization.

264400321441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

The spelling of 264400321441 in words is "two hundred sixty-four billion, four hundred million, three hundred twenty-one thousand, four hundred forty-one".