16457442973 has 2 divisors, whose sum is σ = 16457442974. Its totient is φ = 16457442972.

The previous prime is 16457442929. The next prime is 16457442979. The reversal of 16457442973 is 37924475461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9504885049 + 6952557924 = 97493^2 + 83382^2 .

It is a cyclic number.

It is not a de Polignac number, because 16457442973 - 2⁹ = 16457442461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16457442973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16457442979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8228721486 + 8228721487.

It is an arithmetic number, because the mean of its divisors is an integer number (8228721487).

Almost surely, 2^16457442973 is an apocalyptic number.

It is an amenable number.

16457442973 is a deficient number, since it is larger than the sum of its proper divisors (1).

16457442973 is an equidigital number, since it uses as much as digits as its factorization.

16457442973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 52.

The spelling of 16457442973 in words is "sixteen billion, four hundred fifty-seven million, four hundred forty-two thousand, nine hundred seventy-three".