16789797898 has 8 divisors (see below), whose sum is σ = 25193866500. Its totient is φ = 8391842400.

The previous prime is 16789797889. The next prime is 16789797911. The reversal of 16789797898 is 89879798761.

It can be written as a sum of positive squares in 2 ways, for example, as 15590768769 + 1199029129 = 124863^2 + 34627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1521403 + ... + 1532398.

Almost surely, 2^16789797898 is an apocalyptic number.

16789797898 is a deficient number, since it is larger than the sum of its proper divisors (8404068602).

16789797898 is a wasteful number, since it uses less digits than its factorization.

16789797898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056552.

The product of its digits is 768144384, while the sum is 79.

The spelling of 16789797898 in words is "sixteen billion, seven hundred eighty-nine million, seven hundred ninety-seven thousand, eight hundred ninety-eight".