64269063169 has 4 divisors (see below), whose sum is σ = 64270629844. Its totient is φ = 64267496496.

The previous prime is 64269063163. The next prime is 64269063181. The reversal of 64269063169 is 96136096246.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7100253169 + 57168810000 = 84263^2 + 239100^2 .

It is a cyclic number.

It is not a de Polignac number, because 64269063169 - 2¹⁷ = 64268932097 is a prime.

It is a super-2 number, since 2×64269063169² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64269063163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720102 + ... + 804415.

It is an arithmetic number, because the mean of its divisors is an integer number (16067657461).

Almost surely, 2^64269063169 is an apocalyptic number.

It is an amenable number.

64269063169 is a deficient number, since it is larger than the sum of its proper divisors (1566675).

64269063169 is a wasteful number, since it uses less digits than its factorization.

64269063169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566674.

The product of its (nonzero) digits is 2519424, while the sum is 52.

The spelling of 64269063169 in words is "sixty-four billion, two hundred sixty-nine million, sixty-three thousand, one hundred sixty-nine".