16930578473 has 2 divisors, whose sum is σ = 16930578474. Its totient is φ = 16930578472.

The previous prime is 16930578451. The next prime is 16930578517. The reversal of 16930578473 is 37487503961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9604588009 + 7325990464 = 98003^2 + 85592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16930578473 is a prime.

It is a super-2 number, since 2×16930578473² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16930578373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8465289236 + 8465289237.

It is an arithmetic number, because the mean of its divisors is an integer number (8465289237).

Almost surely, 2^16930578473 is an apocalyptic number.

It is an amenable number.

16930578473 is a deficient number, since it is larger than the sum of its proper divisors (1).

16930578473 is an equidigital number, since it uses as much as digits as its factorization.

16930578473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 16930578473 in words is "sixteen billion, nine hundred thirty million, five hundred seventy-eight thousand, four hundred seventy-three".