40036137984 has 132 divisors (see below), whose sum is σ = 115730174560. Its totient is φ = 13330759680.

The previous prime is 40036137979. The next prime is 40036137989. The reversal of 40036137984 is 48973163004.

40036137984 is a `hidden beast` number, since 400 + 36 + 137 + 9 + 84 = 666.

It is an interprime number because it is at equal distance from previous prime (40036137979) and next prime (40036137989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40036137989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11343132 + ... + 11346660.

Almost surely, 2^40036137984 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 40036137984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57865087280).

40036137984 is an abundant number, since it is smaller than the sum of its proper divisors (75694036576).

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

40036137984 is a wasteful number, since it uses less digits than its factorization.

40036137984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786 (or 4765 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 40036137984 in words is "forty billion, thirty-six million, one hundred thirty-seven thousand, nine hundred eighty-four".