264441533497 has 2 divisors, whose sum is σ = 264441533498. Its totient is φ = 264441533496.

The previous prime is 264441533437. The next prime is 264441533549. The reversal of 264441533497 is 794335144462.

It is an a-pointer prime, because the next prime (264441533549) can be obtained adding 264441533497 to its sum of digits (52).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225438838416 + 39002695081 = 474804^2 + 197491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264441533497 is a prime.

It is not a weakly prime, because it can be changed into another prime (264441533437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132220766748 + 132220766749.

It is an arithmetic number, because the mean of its divisors is an integer number (132220766749).

Almost surely, 2^264441533497 is an apocalyptic number.

It is an amenable number.

264441533497 is a deficient number, since it is larger than the sum of its proper divisors (1).

264441533497 is an equidigital number, since it uses as much as digits as its factorization.

264441533497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 52.

The spelling of 264441533497 in words is "two hundred sixty-four billion, four hundred forty-one million, five hundred thirty-three thousand, four hundred ninety-seven".