40805643080 has 32 divisors (see below), whose sum is σ = 91821030840. Its totient is φ = 16320775680.

The previous prime is 40805643059. The next prime is 40805643091. The reversal of 40805643080 is 8034650804.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27054328324 + 13751314756 = 164482^2 + 117266^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471332 + ... + 551148.

Almost surely, 2^40805643080 is an apocalyptic number.

40805643080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40805643080 is an abundant number, since it is smaller than the sum of its proper divisors (51015387760).

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

40805643080 is a wasteful number, since it uses less digits than its factorization.

40805643080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92609 (or 92605 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 40805643080 in words is "forty billion, eight hundred five million, six hundred forty-three thousand, eighty".