999999273000073 has 2 divisors, whose sum is σ = 999999273000074. Its totient is φ = 999999273000072.

The previous prime is 999999272999999. The next prime is 999999273000113. The reversal of 999999273000073 is 370000372999999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 926554150179904 + 73445122820169 = 30439352^2 + 8570013^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999999273000073 is a prime.

It is not a weakly prime, because it can be changed into another prime (999999273007073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999636500036 + 499999636500037.

It is an arithmetic number, because the mean of its divisors is an integer number (499999636500037).

Almost surely, 2^{999999273000073} is an apocalyptic number.

It is an amenable number.

999999273000073 is a deficient number, since it is larger than the sum of its proper divisors (1).

999999273000073 is an equidigital number, since it uses as much as digits as its factorization.

999999273000073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 468730962, while the sum is 76.

The spelling of 999999273000073 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, two hundred seventy-three million, seventy-three", and thus it is an aban number.