16519983829 has 2 divisors, whose sum is σ = 16519983830. Its totient is φ = 16519983828.

The previous prime is 16519983817. The next prime is 16519983863. The reversal of 16519983829 is 92838991561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12363216100 + 4156767729 = 111190^2 + 64473^2 .

It is a cyclic number.

It is not a de Polignac number, because 16519983829 - 2⁵ = 16519983797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16519983889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8259991914 + 8259991915.

It is an arithmetic number, because the mean of its divisors is an integer number (8259991915).

Almost surely, 2^16519983829 is an apocalyptic number.

It is an amenable number.

16519983829 is a deficient number, since it is larger than the sum of its proper divisors (1).

16519983829 is an equidigital number, since it uses as much as digits as its factorization.

16519983829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 61.

The spelling of 16519983829 in words is "sixteen billion, five hundred nineteen million, nine hundred eighty-three thousand, eight hundred twenty-nine".