16487132587 has 2 divisors, whose sum is σ = 16487132588. Its totient is φ = 16487132586.

The previous prime is 16487132581. The next prime is 16487132611. The reversal of 16487132587 is 78523178461.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16487132587 is a prime.

It is not a weakly prime, because it can be changed into another prime (16487132581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8243566293 + 8243566294.

It is an arithmetic number, because the mean of its divisors is an integer number (8243566294).

Almost surely, 2^16487132587 is an apocalyptic number.

16487132587 is a deficient number, since it is larger than the sum of its proper divisors (1).

16487132587 is an equidigital number, since it uses as much as digits as its factorization.

16487132587 is an evil number, because the sum of its binary digits is even.

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

The spelling of 16487132587 in words is "sixteen billion, four hundred eighty-seven million, one hundred thirty-two thousand, five hundred eighty-seven".