16438788042 has 16 divisors (see below), whose sum is σ = 32914820640. Its totient is φ = 5473388592.

The previous prime is 16438788017. The next prime is 16438788073. The reversal of 16438788042 is 24088783461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1546117 + ... + 1556712.

It is an arithmetic number, because the mean of its divisors is an integer number (2057176290).

Almost surely, 2^16438788042 is an apocalyptic number.

16438788042 is an abundant number, since it is smaller than the sum of its proper divisors (16476032598).

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

16438788042 is a wasteful number, since it uses less digits than its factorization.

16438788042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103717.

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 16438788042 in words is "sixteen billion, four hundred thirty-eight million, seven hundred eighty-eight thousand, forty-two".