168274362268872 has 128 divisors (see below), whose sum is σ = 483587788464000. Its totient is φ = 54152699731200.

The previous prime is 168274362268853. The next prime is 168274362268913. The reversal of 168274362268872 is 278862263472861.

It is a happy number.

168274362268872 is a `hidden beast` number, since 1 + 6 + 8 + 27 + 436 + 2 + 26 + 88 + 72 = 666.

168274362268872 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 168274362268872.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73559122 + ... + 75812222.

It is an arithmetic number, because the mean of its divisors is an integer number (3778029597375).

Almost surely, 2^{168274362268872} is an apocalyptic number.

168274362268872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168274362268872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241793894232000).

168274362268872 is an abundant number, since it is smaller than the sum of its proper divisors (315313426195128).

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

168274362268872 is a wasteful number, since it uses less digits than its factorization.

168274362268872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265068 (or 2265058 counting only the distinct ones).

The product of its digits is 1040449536, while the sum is 72.

The spelling of 168274362268872 in words is "one hundred sixty-eight trillion, two hundred seventy-four billion, three hundred sixty-two million, two hundred sixty-eight thousand, eight hundred seventy-two".