40068000000 has 1008 divisors, whose sum is σ = 172460292480. Its totient is φ = 8985600000.

The previous prime is 40067999989. The next prime is 40068000047. The reversal of 40068000000 is 86004.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 755999974 + ... + 756000026.

It is an arithmetic number, because the mean of its divisors is an integer number (171091560).

Almost surely, 2^40068000000 is an apocalyptic number.

40068000000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40068000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86230146240).

40068000000 is an abundant number, since it is smaller than the sum of its proper divisors (132392292480).

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

40068000000 is an frugal number, since it uses more digits than its factorization.

40068000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 40068000000 its reverse (86004), we get a palindrome (40068086004).

The spelling of 40068000000 in words is "forty billion, sixty-eight million", and thus it is an aban number and an uban number.