64134543013 has 2 divisors, whose sum is σ = 64134543014. Its totient is φ = 64134543012.

The previous prime is 64134542987. The next prime is 64134543029. The reversal of 64134543013 is 31034543146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34441049889 + 29693493124 = 185583^2 + 172318^2 .

It is a cyclic number.

It is not a de Polignac number, because 64134543013 - 2⁹ = 64134542501 is a prime.

It is a super-2 number, since 2×64134543013² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64134543013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64134543113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32067271506 + 32067271507.

It is an arithmetic number, because the mean of its divisors is an integer number (32067271507).

Almost surely, 2^64134543013 is an apocalyptic number.

It is an amenable number.

64134543013 is a deficient number, since it is larger than the sum of its proper divisors (1).

64134543013 is an equidigital number, since it uses as much as digits as its factorization.

64134543013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 64134543013 in words is "sixty-four billion, one hundred thirty-four million, five hundred forty-three thousand, thirteen".