16179431047 has 4 divisors (see below), whose sum is σ = 17424002680. Its totient is φ = 14934859416.

The previous prime is 16179431041. The next prime is 16179431089. The reversal of 16179431047 is 74013497161.

16179431047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74013497161 = 19 ⋅3895447219.

It is a cyclic number.

It is not a de Polignac number, because 16179431047 - 2¹¹ = 16179428999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16179430994 and 16179431012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16179431041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622285797 + ... + 622285822.

It is an arithmetic number, because the mean of its divisors is an integer number (4356000670).

Almost surely, 2^16179431047 is an apocalyptic number.

16179431047 is a deficient number, since it is larger than the sum of its proper divisors (1244571633).

16179431047 is a wasteful number, since it uses less digits than its factorization.

16179431047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244571632.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 16179431047 in words is "sixteen billion, one hundred seventy-nine million, four hundred thirty-one thousand, forty-seven".