16939168428 has 96 divisors (see below), whose sum is σ = 50215137280. Its totient is φ = 4323352320.

The previous prime is 16939168423. The next prime is 16939168457. The reversal of 16939168428 is 82486193961.

It is not an unprimeable number, because it can be changed into a prime (16939168423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216343 + ... + 284046.

Almost surely, 2^16939168428 is an apocalyptic number.

It is an amenable number.

16939168428 is an abundant number, since it is smaller than the sum of its proper divisors (33275968852).

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

16939168428 is a wasteful number, since it uses less digits than its factorization.

16939168428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500447 (or 500445 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 57.

The spelling of 16939168428 in words is "sixteen billion, nine hundred thirty-nine million, one hundred sixty-eight thousand, four hundred twenty-eight".