40105737231218 has 4 divisors (see below), whose sum is σ = 60158605846830. Its totient is φ = 20052868615608.

The previous prime is 40105737231167. The next prime is 40105737231229. The reversal of 40105737231218 is 81213273750104.

40105737231218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39188764368649 + 916972862569 = 6260093^2 + 957587^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10026434307803 + ... + 10026434307806.

Almost surely, 2^{40105737231218} is an apocalyptic number.

40105737231218 is a deficient number, since it is larger than the sum of its proper divisors (20052868615612).

40105737231218 is a wasteful number, since it uses less digits than its factorization.

40105737231218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20052868615611.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 40105737231218 in words is "forty trillion, one hundred five billion, seven hundred thirty-seven million, two hundred thirty-one thousand, two hundred eighteen".