168873734547 has 32 divisors (see below), whose sum is σ = 302742835200. Its totient is φ = 90822847104.

The previous prime is 168873734531. The next prime is 168873734591. The reversal of 168873734547 is 745437378861.

168873734547 is a `hidden beast` number, since 1 + 6 + 8 + 87 + 3 + 7 + 3 + 4 + 547 = 666.

It is not a de Polignac number, because 168873734547 - 2⁴ = 168873734531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (168873734527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26276547 + ... + 26282972.

It is an arithmetic number, because the mean of its divisors is an integer number (9460713600).

Almost surely, 2^168873734547 is an apocalyptic number.

168873734547 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

168873734547 is a deficient number, since it is larger than the sum of its proper divisors (133869100653).

168873734547 is a wasteful number, since it uses less digits than its factorization.

168873734547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52559552 (or 52559546 counting only the distinct ones).

The product of its digits is 94832640, while the sum is 63.

The spelling of 168873734547 in words is "one hundred sixty-eight billion, eight hundred seventy-three million, seven hundred thirty-four thousand, five hundred forty-seven".