16809457038 has 16 divisors (see below), whose sum is σ = 36675179136. Its totient is φ = 5093774840.

The previous prime is 16809456991. The next prime is 16809457069. The reversal of 16809457038 is 83075490861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127344306 + ... + 127344437.

It is an arithmetic number, because the mean of its divisors is an integer number (2292198696).

Almost surely, 2^16809457038 is an apocalyptic number.

16809457038 is an abundant number, since it is smaller than the sum of its proper divisors (19865722098).

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

16809457038 is a wasteful number, since it uses less digits than its factorization.

16809457038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254688759.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 16809457038 in words is "sixteen billion, eight hundred nine million, four hundred fifty-seven thousand, thirty-eight".