16487986429 has 2 divisors, whose sum is σ = 16487986430. Its totient is φ = 16487986428.

The previous prime is 16487986409. The next prime is 16487986507. The reversal of 16487986429 is 92468978461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15969376900 + 518609529 = 126370^2 + 22773^2 .

It is an emirp because it is prime and its reverse (92468978461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16487986429 - 2⁷ = 16487986301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16487986409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8243993214 + 8243993215.

It is an arithmetic number, because the mean of its divisors is an integer number (8243993215).

Almost surely, 2^16487986429 is an apocalyptic number.

It is an amenable number.

16487986429 is a deficient number, since it is larger than the sum of its proper divisors (1).

16487986429 is an equidigital number, since it uses as much as digits as its factorization.

16487986429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41803776, while the sum is 64.

The spelling of 16487986429 in words is "sixteen billion, four hundred eighty-seven million, nine hundred eighty-six thousand, four hundred twenty-nine".