16487469391 has 2 divisors, whose sum is σ = 16487469392. Its totient is φ = 16487469390.

The previous prime is 16487469377. The next prime is 16487469419. The reversal of 16487469391 is 19396478461.

It is a weak prime.

It is an emirp because it is prime and its reverse (19396478461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16487469391 - 2⁷ = 16487469263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16487469491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8243734695 + 8243734696.

It is an arithmetic number, because the mean of its divisors is an integer number (8243734696).

Almost surely, 2^16487469391 is an apocalyptic number.

16487469391 is a deficient number, since it is larger than the sum of its proper divisors (1).

16487469391 is an equidigital number, since it uses as much as digits as its factorization.

16487469391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 58.

The spelling of 16487469391 in words is "sixteen billion, four hundred eighty-seven million, four hundred sixty-nine thousand, three hundred ninety-one".