64380095569 has 2 divisors, whose sum is σ = 64380095570. Its totient is φ = 64380095568.

The previous prime is 64380095537. The next prime is 64380095573. The reversal of 64380095569 is 96559008346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36552851344 + 27827244225 = 191188^2 + 166815^2 .

It is a cyclic number.

It is not a de Polignac number, because 64380095569 - 2⁵ = 64380095537 is a prime.

It is a super-2 number, since 2×64380095569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64380095369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32190047784 + 32190047785.

It is an arithmetic number, because the mean of its divisors is an integer number (32190047785).

Almost surely, 2^64380095569 is an apocalyptic number.

It is an amenable number.

64380095569 is a deficient number, since it is larger than the sum of its proper divisors (1).

64380095569 is an equidigital number, since it uses as much as digits as its factorization.

64380095569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 64380095569 in words is "sixty-four billion, three hundred eighty million, ninety-five thousand, five hundred sixty-nine".