4091143968 has 54 divisors (see below), whose sum is σ = 11637278289. Its totient is φ = 1363352832.

The previous prime is 4091143967. The next prime is 4091144003. The reversal of 4091143968 is 8693411904.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 3587051664 + 504092304 = 59892^2 + 22452^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=45228.

It is not an unprimeable number, because it can be changed into a prime (4091143967) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1083588 + ... + 1087356.

Almost surely, 2^4091143968 is an apocalyptic number.

4091143968 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4091143968 is an abundant number, since it is smaller than the sum of its proper divisors (7546134321).

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

4091143968 is an frugal number, since it uses more digits than its factorization.

4091143968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7554 (or 3774 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 4091143968 is about 63962.0509990103. The cubic root of 4091143968 is about 1599.3674541282.

The spelling of 4091143968 in words is "four billion, ninety-one million, one hundred forty-three thousand, nine hundred sixty-eight".