64363532537489 has 2 divisors, whose sum is σ = 64363532537490. Its totient is φ = 64363532537488.

The previous prime is 64363532537459. The next prime is 64363532537503. The reversal of 64363532537489 is 98473523536346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63585313921600 + 778218615889 = 7974040^2 + 882167^2 .

It is a cyclic number.

It is not a de Polignac number, because 64363532537489 - 2²⁰ = 64363531488913 is a prime.

It is a super-3 number, since 3×64363532537489³ (a number of 42 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (64363532537459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32181766268744 + 32181766268745.

It is an arithmetic number, because the mean of its divisors is an integer number (32181766268745).

Almost surely, 2^{64363532537489} is an apocalyptic number.

It is an amenable number.

64363532537489 is a deficient number, since it is larger than the sum of its proper divisors (1).

64363532537489 is an equidigital number, since it uses as much as digits as its factorization.

64363532537489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1175731200, while the sum is 68.

The spelling of 64363532537489 in words is "sixty-four trillion, three hundred sixty-three billion, five hundred thirty-two million, five hundred thirty-seven thousand, four hundred eighty-nine".