16939408052 has 24 divisors (see below), whose sum is σ = 34355986560. Its totient is φ = 7157495520.

The previous prime is 16939408037. The next prime is 16939408099. The reversal of 16939408052 is 25080493961.

It is a junction number, because it is equal to n+sod(n) for n = 16939407988 and 16939408006.

It is a congruent number.

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, 4258427 + ... + 4262402.

It is an arithmetic number, because the mean of its divisors is an integer number (1431499440).

Almost surely, 2^16939408052 is an apocalyptic number.

It is an amenable number.

16939408052 is an abundant number, since it is smaller than the sum of its proper divisors (17416578508).

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

16939408052 is a wasteful number, since it uses less digits than its factorization.

16939408052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520911 (or 8520909 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 16939408052 in words is "sixteen billion, nine hundred thirty-nine million, four hundred eight thousand, fifty-two".