264619495247 has 2 divisors, whose sum is σ = 264619495248. Its totient is φ = 264619495246.

The previous prime is 264619495123. The next prime is 264619495411. The reversal of 264619495247 is 742594916462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264619495247 - 2¹² = 264619491151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264619495447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132309747623 + 132309747624.

It is an arithmetic number, because the mean of its divisors is an integer number (132309747624).

Almost surely, 2^264619495247 is an apocalyptic number.

264619495247 is a deficient number, since it is larger than the sum of its proper divisors (1).

264619495247 is an equidigital number, since it uses as much as digits as its factorization.

264619495247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 59.

The spelling of 264619495247 in words is "two hundred sixty-four billion, six hundred nineteen million, four hundred ninety-five thousand, two hundred forty-seven".