40044033697 has 8 divisors (see below), whose sum is σ = 41129590016. Its totient is φ = 38958650352.

The previous prime is 40044033691. The next prime is 40044033767. The reversal of 40044033697 is 79633044004.

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

It is not a de Polignac number, because 40044033697 - 2⁷ = 40044033569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40044033691) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 526288 + ... + 597550.

It is an arithmetic number, because the mean of its divisors is an integer number (5141198752).

Almost surely, 2^40044033697 is an apocalyptic number.

It is an amenable number.

40044033697 is a deficient number, since it is larger than the sum of its proper divisors (1085556319).

40044033697 is a wasteful number, since it uses less digits than its factorization.

40044033697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86487.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 40044033697 in words is "forty billion, forty-four million, thirty-three thousand, six hundred ninety-seven".