16912851499 has 2 divisors, whose sum is σ = 16912851500. Its totient is φ = 16912851498.

The previous prime is 16912851497. The next prime is 16912851569. The reversal of 16912851499 is 99415821961.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16912851499 - 2¹ = 16912851497 is a prime.

Together with 16912851497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16912851497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8456425749 + 8456425750.

It is an arithmetic number, because the mean of its divisors is an integer number (8456425750).

Almost surely, 2^16912851499 is an apocalyptic number.

16912851499 is a deficient number, since it is larger than the sum of its proper divisors (1).

16912851499 is an equidigital number, since it uses as much as digits as its factorization.

16912851499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 55.

The spelling of 16912851499 in words is "sixteen billion, nine hundred twelve million, eight hundred fifty-one thousand, four hundred ninety-nine".