40785742984 has 128 divisors (see below), whose sum is σ = 94173891840. Its totient is φ = 16162578432.

The previous prime is 40785742909. The next prime is 40785743017. The reversal of 40785742984 is 48924758704.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20361327 + ... + 20363329.

It is an arithmetic number, because the mean of its divisors is an integer number (735733530).

Almost surely, 2^40785742984 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 40785742984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47086945920).

40785742984 is an abundant number, since it is smaller than the sum of its proper divisors (53388148856).

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

40785742984 is a wasteful number, since it uses less digits than its factorization.

40785742984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 58.

The spelling of 40785742984 in words is "forty billion, seven hundred eighty-five million, seven hundred forty-two thousand, nine hundred eighty-four".