73530865487 has 2 divisors, whose sum is σ = 73530865488. Its totient is φ = 73530865486.

The previous prime is 73530865477. The next prime is 73530865489. The reversal of 73530865487 is 78456803537.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73530865487 - 2¹⁴ = 73530849103 is a prime.

Together with 73530865489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73530865489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36765432743 + 36765432744.

It is an arithmetic number, because the mean of its divisors is an integer number (36765432744).

Almost surely, 2^73530865487 is an apocalyptic number.

73530865487 is a deficient number, since it is larger than the sum of its proper divisors (1).

73530865487 is an equidigital number, since it uses as much as digits as its factorization.

73530865487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 73530865487 in words is "seventy-three billion, five hundred thirty million, eight hundred sixty-five thousand, four hundred eighty-seven".