16942138047 has 12 divisors (see below), whose sum is σ = 24476235784. Its totient is φ = 11292793200.

The previous prime is 16942138021. The next prime is 16942138117. The reversal of 16942138047 is 74083124961.

It is not a de Polignac number, because 16942138047 - 2¹⁸ = 16941875903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16942137993 and 16942138011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16942139047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108208 + ... + 213525.

Almost surely, 2^16942138047 is an apocalyptic number.

16942138047 is a deficient number, since it is larger than the sum of its proper divisors (7534097737).

16942138047 is a wasteful number, since it uses less digits than its factorization.

16942138047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327590 (or 327587 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 16942138047 in words is "sixteen billion, nine hundred forty-two million, one hundred thirty-eight thousand, forty-seven".