16946932489 has 2 divisors, whose sum is σ = 16946932490. Its totient is φ = 16946932488.

The previous prime is 16946932459. The next prime is 16946932501. The reversal of 16946932489 is 98423964961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14146723600 + 2800208889 = 118940^2 + 52917^2 .

It is a cyclic number.

It is not a de Polignac number, because 16946932489 - 2⁷ = 16946932361 is a prime.

It is not a weakly prime, because it can be changed into another prime (16946932439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8473466244 + 8473466245.

It is an arithmetic number, because the mean of its divisors is an integer number (8473466245).

Almost surely, 2^16946932489 is an apocalyptic number.

It is an amenable number.

16946932489 is a deficient number, since it is larger than the sum of its proper divisors (1).

16946932489 is an equidigital number, since it uses as much as digits as its factorization.

16946932489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20155392, while the sum is 61.

The spelling of 16946932489 in words is "sixteen billion, nine hundred forty-six million, nine hundred thirty-two thousand, four hundred eighty-nine".