40043666038 has 8 divisors (see below), whose sum is σ = 60597052488. Its totient is φ = 19844648544.

The previous prime is 40043665993. The next prime is 40043666051. The reversal of 40043666038 is 83066634004.

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

It is a congruent number.

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, 88591956 + ... + 88592407.

It is an arithmetic number, because the mean of its divisors is an integer number (7574631561).

Almost surely, 2^40043666038 is an apocalyptic number.

40043666038 is a deficient number, since it is larger than the sum of its proper divisors (20553386450).

40043666038 is a wasteful number, since it uses less digits than its factorization.

40043666038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177184478.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 40043666038 in words is "forty billion, forty-three million, six hundred sixty-six thousand, thirty-eight".