64359250321 has 2 divisors, whose sum is σ = 64359250322. Its totient is φ = 64359250320.

The previous prime is 64359250283. The next prime is 64359250337. The reversal of 64359250321 is 12305295346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63617450625 + 741799696 = 252225^2 + 27236^2 .

It is a cyclic number.

It is not a de Polignac number, because 64359250321 - 2¹⁵ = 64359217553 is a prime.

It is a super-2 number, since 2×64359250321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64359250621) 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, 32179625160 + 32179625161.

It is an arithmetic number, because the mean of its divisors is an integer number (32179625161).

Almost surely, 2^64359250321 is an apocalyptic number.

It is an amenable number.

64359250321 is a deficient number, since it is larger than the sum of its proper divisors (1).

64359250321 is an equidigital number, since it uses as much as digits as its factorization.

64359250321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 64359250321 in words is "sixty-four billion, three hundred fifty-nine million, two hundred fifty thousand, three hundred twenty-one".