168825456438 has 32 divisors (see below), whose sum is σ = 347052625920. Its totient is φ = 54710621280.

The previous prime is 168825456433. The next prime is 168825456461. The reversal of 168825456438 is 834654528861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168825456433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22518 + ... + 581513.

It is an arithmetic number, because the mean of its divisors is an integer number (10845394560).

Almost surely, 2^168825456438 is an apocalyptic number.

168825456438 is an abundant number, since it is smaller than the sum of its proper divisors (178227169482).

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

168825456438 is a wasteful number, since it uses less digits than its factorization.

168825456438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605332.

The product of its digits is 44236800, while the sum is 60.

The spelling of 168825456438 in words is "one hundred sixty-eight billion, eight hundred twenty-five million, four hundred fifty-six thousand, four hundred thirty-eight".