64230336317 has 4 divisors (see below), whose sum is σ = 73406098656. Its totient is φ = 55054573980.

The previous prime is 64230336311. The next prime is 64230336353. The reversal of 64230336317 is 71363303246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71363303246 = 2 ⋅35681651623.

It is not a de Polignac number, because 64230336317 - 2¹⁸ = 64230074173 is a prime.

It is a super-2 number, since 2×64230336317² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64230336311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4587881159 + ... + 4587881172.

It is an arithmetic number, because the mean of its divisors is an integer number (18351524664).

Almost surely, 2^64230336317 is an apocalyptic number.

It is an amenable number.

64230336317 is a deficient number, since it is larger than the sum of its proper divisors (9175762339).

64230336317 is an equidigital number, since it uses as much as digits as its factorization.

64230336317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9175762338.

The product of its (nonzero) digits is 163296, while the sum is 38.

The spelling of 64230336317 in words is "sixty-four billion, two hundred thirty million, three hundred thirty-six thousand, three hundred seventeen".