64455625045219 has 2 divisors, whose sum is σ = 64455625045220. Its totient is φ = 64455625045218.

The previous prime is 64455625045193. The next prime is 64455625045241. The reversal of 64455625045219 is 91254052655446.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64455625045219 - 2¹¹ = 64455625043171 is a prime.

It is a super-2 number, since 2×64455625045219² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64455625042219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32227812522609 + 32227812522610.

It is an arithmetic number, because the mean of its divisors is an integer number (32227812522610).

Almost surely, 2^{64455625045219} is an apocalyptic number.

64455625045219 is a deficient number, since it is larger than the sum of its proper divisors (1).

64455625045219 is an equidigital number, since it uses as much as digits as its factorization.

64455625045219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840000, while the sum is 58.

The spelling of 64455625045219 in words is "sixty-four trillion, four hundred fifty-five billion, six hundred twenty-five million, forty-five thousand, two hundred nineteen".