40183691888 has 20 divisors (see below), whose sum is σ = 81953582760. Its totient is φ = 19034380224.

The previous prime is 40183691879. The next prime is 40183691903. The reversal of 40183691888 is 88819638104.

It is a super-2 number, since 2×40183691888² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66091295 + ... + 66091902.

It is an arithmetic number, because the mean of its divisors is an integer number (4097679138).

Almost surely, 2^40183691888 is an apocalyptic number.

It is an amenable number.

40183691888 is an abundant number, since it is smaller than the sum of its proper divisors (41769890872).

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

40183691888 is a wasteful number, since it uses less digits than its factorization.

40183691888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132183224 (or 132183218 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 56.

The spelling of 40183691888 in words is "forty billion, one hundred eighty-three million, six hundred ninety-one thousand, eight hundred eighty-eight".