73545225666971 has 2 divisors, whose sum is σ = 73545225666972. Its totient is φ = 73545225666970.

The previous prime is 73545225666961. The next prime is 73545225667033. The reversal of 73545225666971 is 17966652254537.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73545225666971 - 2¹⁴ = 73545225650587 is a prime.

It is not a weakly prime, because it can be changed into another prime (73545225666961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36772612833485 + 36772612833486.

It is an arithmetic number, because the mean of its divisors is an integer number (36772612833486).

Almost surely, 2^{73545225666971} is an apocalyptic number.

73545225666971 is a deficient number, since it is larger than the sum of its proper divisors (1).

73545225666971 is an equidigital number, since it uses as much as digits as its factorization.

73545225666971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536000, while the sum is 68.

The spelling of 73545225666971 in words is "seventy-three trillion, five hundred forty-five billion, two hundred twenty-five million, six hundred sixty-six thousand, nine hundred seventy-one".