40068663318 has 12 divisors (see below), whose sum is σ = 86815437228. Its totient is φ = 13356221100.

The previous prime is 40068663293. The next prime is 40068663343. The reversal of 40068663318 is 81336686004.

40068663318 is a `hidden beast` number, since 4 + 0 + 0 + 6 + 8 + 6 + 633 + 1 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (40068663293) and next prime (40068663343).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1113018408 + ... + 1113018443.

It is an arithmetic number, because the mean of its divisors is an integer number (7234619769).

Almost surely, 2^40068663318 is an apocalyptic number.

40068663318 is an abundant number, since it is smaller than the sum of its proper divisors (46746773910).

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

40068663318 is a wasteful number, since it uses less digits than its factorization.

40068663318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226036859 (or 2226036856 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 40068663318 in words is "forty billion, sixty-eight million, six hundred sixty-three thousand, three hundred eighteen".