16994790931 has 2 divisors, whose sum is σ = 16994790932. Its totient is φ = 16994790930.

The previous prime is 16994790907. The next prime is 16994790941. The reversal of 16994790931 is 13909749961.

It is a strong prime.

It is an emirp because it is prime and its reverse (13909749961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16994790931 - 2⁵ = 16994790899 is a prime.

It is a super-2 number, since 2×16994790931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16994790941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8497395465 + 8497395466.

It is an arithmetic number, because the mean of its divisors is an integer number (8497395466).

Almost surely, 2^16994790931 is an apocalyptic number.

16994790931 is a deficient number, since it is larger than the sum of its proper divisors (1).

16994790931 is an equidigital number, since it uses as much as digits as its factorization.

16994790931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3306744, while the sum is 58.

The spelling of 16994790931 in words is "sixteen billion, nine hundred ninety-four million, seven hundred ninety thousand, nine hundred thirty-one".