40868981712 has 240 divisors, whose sum is σ = 126527401728. Its totient is φ = 12234516480.

The previous prime is 40868981711. The next prime is 40868981723. The reversal of 40868981712 is 21718986804.

40868981712 is a `hidden beast` number, since 408 + 68 + 9 + 8 + 171 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40868981711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49658133 + ... + 49658955.

Almost surely, 2^40868981712 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 40868981712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63263700864).

40868981712 is an abundant number, since it is smaller than the sum of its proper divisors (85658420016).

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

40868981712 is a wasteful number, since it uses less digits than its factorization.

40868981712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538 (or 1529 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 40868981712 in words is "forty billion, eight hundred sixty-eight million, nine hundred eighty-one thousand, seven hundred twelve".