40787805744 has 160 divisors (see below), whose sum is σ = 133992535040. Its totient is φ = 11637001728.

The previous prime is 40787805743. The next prime is 40787805791. The reversal of 40787805744 is 44750878704.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (40787805743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2189172 + ... + 2207724.

It is an arithmetic number, because the mean of its divisors is an integer number (837453344).

Almost surely, 2^40787805744 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 40787805744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66996267520).

40787805744 is an abundant number, since it is smaller than the sum of its proper divisors (93204729296).

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

40787805744 is a wasteful number, since it uses less digits than its factorization.

40787805744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19304 (or 19292 counting only the distinct ones).

The product of its (nonzero) digits is 7024640, while the sum is 54.

The spelling of 40787805744 in words is "forty billion, seven hundred eighty-seven million, eight hundred five thousand, seven hundred forty-four".