64975145219 has 2 divisors, whose sum is σ = 64975145220. Its totient is φ = 64975145218.

The previous prime is 64975145197. The next prime is 64975145231. The reversal of 64975145219 is 91254157946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64975145219 - 2²⁸ = 64706709763 is a prime.

It is a super-2 number, since 2×64975145219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64975445219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32487572609 + 32487572610.

It is an arithmetic number, because the mean of its divisors is an integer number (32487572610).

Almost surely, 2^64975145219 is an apocalyptic number.

64975145219 is a deficient number, since it is larger than the sum of its proper divisors (1).

64975145219 is an equidigital number, since it uses as much as digits as its factorization.

64975145219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 53.

The spelling of 64975145219 in words is "sixty-four billion, nine hundred seventy-five million, one hundred forty-five thousand, two hundred nineteen".