16887609829 has 2 divisors, whose sum is σ = 16887609830. Its totient is φ = 16887609828.

The previous prime is 16887609779. The next prime is 16887609841. The reversal of 16887609829 is 92890678861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9369852804 + 7517757025 = 96798^2 + 86705^2 .

It is a cyclic number.

It is not a de Polignac number, because 16887609829 - 2¹⁷ = 16887478757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16887609029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8443804914 + 8443804915.

It is an arithmetic number, because the mean of its divisors is an integer number (8443804915).

Almost surely, 2^16887609829 is an apocalyptic number.

It is an amenable number.

16887609829 is a deficient number, since it is larger than the sum of its proper divisors (1).

16887609829 is an equidigital number, since it uses as much as digits as its factorization.

16887609829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20901888, while the sum is 64.

The spelling of 16887609829 in words is "sixteen billion, eight hundred eighty-seven million, six hundred nine thousand, eight hundred twenty-nine".