40178803456 has 72 divisors (see below), whose sum is σ = 89625827088. Its totient is φ = 17817600000.

The previous prime is 40178803439. The next prime is 40178803499. The reversal of 40178803456 is 65430887104.

It is a happy number.

It is a super-2 number, since 2×40178803456² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58545 + ... + 289456.

It is an arithmetic number, because the mean of its divisors is an integer number (1244803154).

Almost surely, 2^40178803456 is an apocalyptic number.

It is an amenable number.

40178803456 is an abundant number, since it is smaller than the sum of its proper divisors (49447023632).

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

40178803456 is a wasteful number, since it uses less digits than its factorization.

40178803456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348069 (or 348055 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 40178803456 in words is "forty billion, one hundred seventy-eight million, eight hundred three thousand, four hundred fifty-six".