40485688531808 has 96 divisors (see below), whose sum is σ = 86736631322880. Its totient is φ = 18490837178880.

The previous prime is 40485688531801. The next prime is 40485688531811. The reversal of 40485688531808 is 80813588658404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40485688531801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16611653 + ... + 18892283.

It is an arithmetic number, because the mean of its divisors is an integer number (903506576280).

Almost surely, 2^{40485688531808} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40485688531808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43368315661440).

40485688531808 is an abundant number, since it is smaller than the sum of its proper divisors (46250942791072).

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

40485688531808 is a wasteful number, since it uses less digits than its factorization.

40485688531808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281100 (or 2281092 counting only the distinct ones).

The product of its (nonzero) digits is 235929600, while the sum is 68.

The spelling of 40485688531808 in words is "forty trillion, four hundred eighty-five billion, six hundred eighty-eight million, five hundred thirty-one thousand, eight hundred eight".