40089731837 has 16 divisors (see below), whose sum is σ = 42244830720. Its totient is φ = 37969334832.

The previous prime is 40089731821. The next prime is 40089731839. The reversal of 40089731837 is 73813798004.

40089731837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40089731837 - 2⁴ = 40089731821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40089731839) 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, 8707178 + ... + 8711780.

It is an arithmetic number, because the mean of its divisors is an integer number (2640301920).

Almost surely, 2^40089731837 is an apocalyptic number.

It is an amenable number.

40089731837 is a deficient number, since it is larger than the sum of its proper divisors (2155098883).

40089731837 is a wasteful number, since it uses less digits than its factorization.

40089731837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8272.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 40089731837 in words is "forty billion, eighty-nine million, seven hundred thirty-one thousand, eight hundred thirty-seven".