40089369136 has 20 divisors (see below), whose sum is σ = 80178739264. Its totient is φ = 19398081600.

The previous prime is 40089369119. The next prime is 40089369139. The reversal of 40089369136 is 63196398004.

40089369136 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 40089369136.

It is not an unprimeable number, because it can be changed into a prime (40089369139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40412175 + ... + 40413166.

Almost surely, 2^40089369136 is an apocalyptic number.

It is an amenable number.

40089369136 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40089369136 is a wasteful number, since it uses less digits than its factorization.

40089369136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80825380 (or 80825374 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 40089369136 in words is "forty billion, eighty-nine million, three hundred sixty-nine thousand, one hundred thirty-six".