16819339400 has 24 divisors (see below), whose sum is σ = 39104964570. Its totient is φ = 6727735680.

The previous prime is 16819339367. The next prime is 16819339423. The reversal of 16819339400 is 493391861.

It can be written as a sum of positive squares in 3 ways, for example, as 13840581316 + 2978758084 = 117646^2 + 54578^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42048149 + ... + 42048548.

Almost surely, 2^16819339400 is an apocalyptic number.

16819339400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16819339400 is an abundant number, since it is smaller than the sum of its proper divisors (22285625170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16819339400 is a wasteful number, since it uses less digits than its factorization.

16819339400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84096713 (or 84096704 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 16819339400 in words is "sixteen billion, eight hundred nineteen million, three hundred thirty-nine thousand, four hundred".