168438853006394 has 8 divisors (see below), whose sum is σ = 252666722085408. Its totient is φ = 84216612311260.

The previous prime is 168438853006387. The next prime is 168438853006397. The reversal of 168438853006394 is 493600358834861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (168438853006397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407021152 + ... + 1407140859.

It is an arithmetic number, because the mean of its divisors is an integer number (31583340260676).

Almost surely, 2^{168438853006394} is an apocalyptic number.

168438853006394 is a deficient number, since it is larger than the sum of its proper divisors (84227869079014).

168438853006394 is a wasteful number, since it uses less digits than its factorization.

168438853006394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814191940.

The product of its (nonzero) digits is 358318080, while the sum is 68.

The spelling of 168438853006394 in words is "one hundred sixty-eight trillion, four hundred thirty-eight billion, eight hundred fifty-three million, six thousand, three hundred ninety-four".