16439426334 has 32 divisors (see below), whose sum is σ = 36908689440. Its totient is φ = 5423314176.

The previous prime is 16439426299. The next prime is 16439426369. The reversal of 16439426334 is 43362493461.

16439426334 is a `hidden beast` number, since 1 + 6 + 4 + 3 + 9 + 4 + 2 + 633 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (16439426299) and next prime (16439426369).

It is a self number, because there is not a number n which added to its sum of digits gives 16439426334.

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 15 ways as a sum of consecutive naturals, for example, 1564009 + ... + 1574484.

It is an arithmetic number, because the mean of its divisors is an integer number (1153396545).

Almost surely, 2^16439426334 is an apocalyptic number.

16439426334 is an abundant number, since it is smaller than the sum of its proper divisors (20469263106).

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

16439426334 is a wasteful number, since it uses less digits than its factorization.

16439426334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138601 (or 3138595 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 45.

The spelling of 16439426334 in words is "sixteen billion, four hundred thirty-nine million, four hundred twenty-six thousand, three hundred thirty-four".