64611537343 has 2 divisors, whose sum is σ = 64611537344. Its totient is φ = 64611537342.

The previous prime is 64611537317. The next prime is 64611537409. The reversal of 64611537343 is 34373511646.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64611537343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64611537343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64611537143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32305768671 + 32305768672.

It is an arithmetic number, because the mean of its divisors is an integer number (32305768672).

Almost surely, 2^64611537343 is an apocalyptic number.

64611537343 is a deficient number, since it is larger than the sum of its proper divisors (1).

64611537343 is an equidigital number, since it uses as much as digits as its factorization.

64611537343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 43.

The spelling of 64611537343 in words is "sixty-four billion, six hundred eleven million, five hundred thirty-seven thousand, three hundred forty-three".