40856569040 has 200 divisors, whose sum is σ = 113600467200. Its totient is φ = 13384500480.

The previous prime is 40856569037. The next prime is 40856569063. The reversal of 40856569040 is 4096565804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 517171721 + ... + 517171799.

It is an arithmetic number, because the mean of its divisors is an integer number (568002336).

Almost surely, 2^40856569040 is an apocalyptic number.

40856569040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40856569040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56800233600).

40856569040 is an abundant number, since it is smaller than the sum of its proper divisors (72743898160).

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

40856569040 is an frugal number, since it uses more digits than its factorization.

40856569040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 40856569040 in words is "forty billion, eight hundred fifty-six million, five hundred sixty-nine thousand, forty".