64373707313 has 2 divisors, whose sum is σ = 64373707314. Its totient is φ = 64373707312.

The previous prime is 64373707289. The next prime is 64373707357. The reversal of 64373707313 is 31370737346.

It is a happy number.

It is an a-pointer prime, because the next prime (64373707357) can be obtained adding 64373707313 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52866425329 + 11507281984 = 229927^2 + 107272^2 .

It is a cyclic number.

It is not a de Polignac number, because 64373707313 - 2⁶ = 64373707249 is a prime.

It is not a weakly prime, because it can be changed into another prime (64373707513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32186853656 + 32186853657.

It is an arithmetic number, because the mean of its divisors is an integer number (32186853657).

Almost surely, 2^64373707313 is an apocalyptic number.

It is an amenable number.

64373707313 is a deficient number, since it is larger than the sum of its proper divisors (1).

64373707313 is an equidigital number, since it uses as much as digits as its factorization.

64373707313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 666792, while the sum is 44.

The spelling of 64373707313 in words is "sixty-four billion, three hundred seventy-three million, seven hundred seven thousand, three hundred thirteen".