40381833591 has 12 divisors (see below), whose sum is σ = 63631980360. Its totient is φ = 24473838480.

The previous prime is 40381833589. The next prime is 40381833601. The reversal of 40381833591 is 19533818304.

40381833591 is a `hidden beast` number, since 40 + 3 + 8 + 18 + 3 + 3 + 591 = 666.

It is not a de Polignac number, because 40381833591 - 2¹ = 40381833589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40381833991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203948556 + ... + 203948753.

It is an arithmetic number, because the mean of its divisors is an integer number (5302665030).

Almost surely, 2^40381833591 is an apocalyptic number.

40381833591 is a deficient number, since it is larger than the sum of its proper divisors (23250146769).

40381833591 is a wasteful number, since it uses less digits than its factorization.

40381833591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407897326 (or 407897323 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 40381833591 in words is "forty billion, three hundred eighty-one million, eight hundred thirty-three thousand, five hundred ninety-one".