264631159518749 has 2 divisors, whose sum is σ = 264631159518750. Its totient is φ = 264631159518748.

The previous prime is 264631159518659. The next prime is 264631159518751. The reversal of 264631159518749 is 947815951136462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255091431582724 + 9539727936025 = 15971582^2 + 3088645^2 .

It is a cyclic number.

It is not a de Polignac number, because 264631159518749 - 2⁸ = 264631159518493 is a prime.

Together with 264631159518751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264631119518749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132315579759374 + 132315579759375.

It is an arithmetic number, because the mean of its divisors is an integer number (132315579759375).

Almost surely, 2^{264631159518749} is an apocalyptic number.

It is an amenable number.

264631159518749 is a deficient number, since it is larger than the sum of its proper divisors (1).

264631159518749 is an equidigital number, since it uses as much as digits as its factorization.

264631159518749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 391910400, while the sum is 71.

The spelling of 264631159518749 in words is "two hundred sixty-four trillion, six hundred thirty-one billion, one hundred fifty-nine million, five hundred eighteen thousand, seven hundred forty-nine".