64243364075 has 12 divisors (see below), whose sum is σ = 86903751048. Its totient is φ = 46722446400.

The previous prime is 64243364057. The next prime is 64243364077. The reversal of 64243364075 is 57046334246.

It is not a de Polignac number, because 64243364075 - 2¹⁸ = 64243101931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64243364077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116805842 + ... + 116806391.

It is an arithmetic number, because the mean of its divisors is an integer number (7241979254).

Almost surely, 2^64243364075 is an apocalyptic number.

64243364075 is a deficient number, since it is larger than the sum of its proper divisors (22660386973).

64243364075 is a wasteful number, since it uses less digits than its factorization.

64243364075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233612254 (or 233612249 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 44.

The spelling of 64243364075 in words is "sixty-four billion, two hundred forty-three million, three hundred sixty-four thousand, seventy-five".