16318913838 has 16 divisors (see below), whose sum is σ = 34355608320. Its totient is φ = 5153341176.

The previous prime is 16318913833. The next prime is 16318913867. The reversal of 16318913838 is 83831981361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16318913833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71574070 + ... + 71574297.

It is an arithmetic number, because the mean of its divisors is an integer number (2147225520).

Almost surely, 2^16318913838 is an apocalyptic number.

16318913838 is an abundant number, since it is smaller than the sum of its proper divisors (18036694482).

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

16318913838 is a wasteful number, since it uses less digits than its factorization.

16318913838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143148391.

The product of its digits is 746496, while the sum is 51.

The spelling of 16318913838 in words is "sixteen billion, three hundred eighteen million, nine hundred thirteen thousand, eight hundred thirty-eight".