16078399238 has 16 divisors (see below), whose sum is σ = 26312420160. Its totient is φ = 7307721000.

The previous prime is 16078399237. The next prime is 16078399261. The reversal of 16078399238 is 83299387061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16078399231) 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 7 ways as a sum of consecutive naturals, for example, 300413 + ... + 349863.

It is an arithmetic number, because the mean of its divisors is an integer number (1644526260).

Almost surely, 2^16078399238 is an apocalyptic number.

16078399238 is a deficient number, since it is larger than the sum of its proper divisors (10234020922).

16078399238 is a wasteful number, since it uses less digits than its factorization.

16078399238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64243.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 16078399238 in words is "sixteen billion, seventy-eight million, three hundred ninety-nine thousand, two hundred thirty-eight".