16315728487 has 2 divisors, whose sum is σ = 16315728488. Its totient is φ = 16315728486.

The previous prime is 16315728467. The next prime is 16315728551. The reversal of 16315728487 is 78482751361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16315728487 - 2¹¹ = 16315726439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16315728467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8157864243 + 8157864244.

It is an arithmetic number, because the mean of its divisors is an integer number (8157864244).

Almost surely, 2^16315728487 is an apocalyptic number.

16315728487 is a deficient number, since it is larger than the sum of its proper divisors (1).

16315728487 is an equidigital number, since it uses as much as digits as its factorization.

16315728487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 52.

The spelling of 16315728487 in words is "sixteen billion, three hundred fifteen million, seven hundred twenty-eight thousand, four hundred eighty-seven".