4091081797168 has 80 divisors (see below), whose sum is σ = 8357363308800. Its totient is φ = 1936218310400.

The previous prime is 4091081797129. The next prime is 4091081797169. The reversal of 4091081797168 is 8617971801904.

4091081797168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4091081797168² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (4091081797169) 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, 73527663 + ... + 73583281.

It is an arithmetic number, because the mean of its divisors is an integer number (104467041360).

Almost surely, 2^{4091081797168} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4091081797168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4178681654400).

4091081797168 is an abundant number, since it is smaller than the sum of its proper divisors (4266281511632).

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

4091081797168 is a wasteful number, since it uses less digits than its factorization.

4091081797168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57730 (or 57724 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 61.

The spelling of 4091081797168 in words is "four trillion, ninety-one billion, eighty-one million, seven hundred ninety-seven thousand, one hundred sixty-eight".