73034207265521 has 2 divisors, whose sum is σ = 73034207265522. Its totient is φ = 73034207265520.

The previous prime is 73034207265517. The next prime is 73034207265611. The reversal of 73034207265521 is 12556270243037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68252200497121 + 4782006768400 = 8261489^2 + 2186780^2 .

It is an emirp because it is prime and its reverse (12556270243037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73034207265521 - 2² = 73034207265517 is a prime.

It is not a weakly prime, because it can be changed into another prime (73034207265221) 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, 36517103632760 + 36517103632761.

It is an arithmetic number, because the mean of its divisors is an integer number (36517103632761).

Almost surely, 2^{73034207265521} is an apocalyptic number.

It is an amenable number.

73034207265521 is a deficient number, since it is larger than the sum of its proper divisors (1).

73034207265521 is an equidigital number, since it uses as much as digits as its factorization.

73034207265521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The spelling of 73034207265521 in words is "seventy-three trillion, thirty-four billion, two hundred seven million, two hundred sixty-five thousand, five hundred twenty-one".