16951009973 has 2 divisors, whose sum is σ = 16951009974. Its totient is φ = 16951009972.

The previous prime is 16951009937. The next prime is 16951009993. The reversal of 16951009973 is 37990015961.

Together with previous prime (16951009937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12560357329 + 4390652644 = 112073^2 + 66262^2 .

It is a cyclic number.

It is not a de Polignac number, because 16951009973 - 2⁸ = 16951009717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16951009993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8475504986 + 8475504987.

It is an arithmetic number, because the mean of its divisors is an integer number (8475504987).

Almost surely, 2^16951009973 is an apocalyptic number.

It is an amenable number.

16951009973 is a deficient number, since it is larger than the sum of its proper divisors (1).

16951009973 is an equidigital number, since it uses as much as digits as its factorization.

16951009973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 459270, while the sum is 50.

The spelling of 16951009973 in words is "sixteen billion, nine hundred fifty-one million, nine thousand, nine hundred seventy-three".