64560624439 has 2 divisors, whose sum is σ = 64560624440. Its totient is φ = 64560624438.

The previous prime is 64560624407. The next prime is 64560624451. The reversal of 64560624439 is 93442606546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64560624439 - 2⁵ = 64560624407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64560624392 and 64560624401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64560024439) 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, 32280312219 + 32280312220.

It is an arithmetic number, because the mean of its divisors is an integer number (32280312220).

Almost surely, 2^64560624439 is an apocalyptic number.

64560624439 is a deficient number, since it is larger than the sum of its proper divisors (1).

64560624439 is an equidigital number, since it uses as much as digits as its factorization.

64560624439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 64560624439 in words is "sixty-four billion, five hundred sixty million, six hundred twenty-four thousand, four hundred thirty-nine".