64265237669 has 2 divisors, whose sum is σ = 64265237670. Its totient is φ = 64265237668.

The previous prime is 64265237573. The next prime is 64265237671. The reversal of 64265237669 is 96673256246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59896688644 + 4368549025 = 244738^2 + 66095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64265237669 is a prime.

It is a super-2 number, since 2×64265237669² (a number of 22 digits) contains 22 as substring.

Together with 64265237671, 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 (64265230669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32132618834 + 32132618835.

It is an arithmetic number, because the mean of its divisors is an integer number (32132618835).

Almost surely, 2^64265237669 is an apocalyptic number.

It is an amenable number.

64265237669 is a deficient number, since it is larger than the sum of its proper divisors (1).

64265237669 is an equidigital number, since it uses as much as digits as its factorization.

64265237669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 56.

The spelling of 64265237669 in words is "sixty-four billion, two hundred sixty-five million, two hundred thirty-seven thousand, six hundred sixty-nine".