64343763013 has 2 divisors, whose sum is σ = 64343763014. Its totient is φ = 64343763012.

The previous prime is 64343762921. The next prime is 64343763019. The reversal of 64343763013 is 31036734346.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44429473089 + 19914289924 = 210783^2 + 141118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64343763013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64343763019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32171881506 + 32171881507.

It is an arithmetic number, because the mean of its divisors is an integer number (32171881507).

Almost surely, 2^64343763013 is an apocalyptic number.

It is an amenable number.

64343763013 is a deficient number, since it is larger than the sum of its proper divisors (1).

64343763013 is an equidigital number, since it uses as much as digits as its factorization.

64343763013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 40.

The spelling of 64343763013 in words is "sixty-four billion, three hundred forty-three million, seven hundred sixty-three thousand, thirteen".