4081591086 has 64 divisors (see below), whose sum is σ = 8644838400. Its totient is φ = 1282127616.

The previous prime is 4081591079. The next prime is 4081591091. The reversal of 4081591086 is 6801951804.

It is a congruent number.

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, 5391420 + ... + 5392176.

It is an arithmetic number, because the mean of its divisors is an integer number (135075600).

Almost surely, 2^4081591086 is an apocalyptic number.

4081591086 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4081591086 is an abundant number, since it is smaller than the sum of its proper divisors (4563247314).

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

4081591086 is a wasteful number, since it uses less digits than its factorization.

4081591086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 4081591086 is about 63887.3311854549. The cubic root of 4081591086 is about 1598.1216350265.

The spelling of 4081591086 in words is "four billion, eighty-one million, five hundred ninety-one thousand, eighty-six".