671328000073 has 2 divisors, whose sum is σ = 671328000074. Its totient is φ = 671328000072.

The previous prime is 671327999971. The next prime is 671328000121. The reversal of 671328000073 is 370000823176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377723326464 + 293604673609 = 614592^2 + 541853^2 .

It is a cyclic number.

It is not a de Polignac number, because 671328000073 - 2⁹ = 671327999561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671327999996 and 671328000041.

It is not a weakly prime, because it can be changed into another prime (671326000073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335664000036 + 335664000037.

It is an arithmetic number, because the mean of its divisors is an integer number (335664000037).

Almost surely, 2^671328000073 is an apocalyptic number.

It is an amenable number.

671328000073 is a deficient number, since it is larger than the sum of its proper divisors (1).

671328000073 is an equidigital number, since it uses as much as digits as its factorization.

671328000073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 671328000073 in words is "six hundred seventy-one billion, three hundred twenty-eight million, seventy-three", and thus it is an aban number.