73963064689 has 2 divisors, whose sum is σ = 73963064690. Its totient is φ = 73963064688.

The previous prime is 73963064611. The next prime is 73963064699. The reversal of 73963064689 is 98646036937.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62616554289 + 11346510400 = 250233^2 + 106520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73963064689 is a prime.

It is not a weakly prime, because it can be changed into another prime (73963064699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36981532344 + 36981532345.

It is an arithmetic number, because the mean of its divisors is an integer number (36981532345).

Almost surely, 2^73963064689 is an apocalyptic number.

It is an amenable number.

73963064689 is a deficient number, since it is larger than the sum of its proper divisors (1).

73963064689 is an equidigital number, since it uses as much as digits as its factorization.

73963064689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35271936, while the sum is 61.

The spelling of 73963064689 in words is "seventy-three billion, nine hundred sixty-three million, sixty-four thousand, six hundred eighty-nine".