16813530890 has 64 divisors (see below), whose sum is σ = 32985459360. Its totient is φ = 6133432320.

The previous prime is 16813530869. The next prime is 16813530907. The reversal of 16813530890 is 9803531861.

16813530890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 129667²+1.

It can be written as a sum of positive squares in 16 ways, for example, as 176916601 + 16636614289 = 13301^2 + 128983^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14236100 + ... + 14237280.

Almost surely, 2^16813530890 is an apocalyptic number.

16813530890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16813530890 is a deficient number, since it is larger than the sum of its proper divisors (16171928470).

16813530890 is a wasteful number, since it uses less digits than its factorization.

16813530890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 16813530890 in words is "sixteen billion, eight hundred thirteen million, five hundred thirty thousand, eight hundred ninety".