40145308018 has 8 divisors (see below), whose sum is σ = 60233230512. Its totient is φ = 20067564516.

The previous prime is 40145308009. The next prime is 40145308037. The reversal of 40145308018 is 81080354104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40145308018² (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 3 ways as a sum of consecutive naturals, for example, 2534880 + ... + 2550667.

It is an arithmetic number, because the mean of its divisors is an integer number (7529153814).

Almost surely, 2^40145308018 is an apocalyptic number.

40145308018 is a deficient number, since it is larger than the sum of its proper divisors (20087922494).

40145308018 is a wasteful number, since it uses less digits than its factorization.

40145308018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5089496.

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 40145308018 in words is "forty billion, one hundred forty-five million, three hundred eight thousand, eighteen".