40205384446888 has 16 divisors (see below), whose sum is σ = 75385620014580. Its totient is φ = 20102552443008.

The previous prime is 40205384446861. The next prime is 40205384446921. The reversal of 40205384446888 is 88864448350204.

It can be written as a sum of positive squares in 2 ways, for example, as 40036724741764 + 168659705124 = 6327458^2 + 410682^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16245045 + ... + 18555652.

Almost surely, 2^{40205384446888} is an apocalyptic number.

It is an amenable number.

40205384446888 is a deficient number, since it is larger than the sum of its proper divisors (35180235567692).

40205384446888 is a wasteful number, since it uses less digits than its factorization.

40205384446888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34945116 (or 34945112 counting only the distinct ones).

The product of its (nonzero) digits is 188743680, while the sum is 64.

The spelling of 40205384446888 in words is "forty trillion, two hundred five billion, three hundred eighty-four million, four hundred forty-six thousand, eight hundred eighty-eight".