40643230643573 has 8 divisors (see below), whose sum is σ = 40680071180928. Its totient is φ = 40606396004304.

The previous prime is 40643230643527. The next prime is 40643230643581. The reversal of 40643230643573 is 37534603234604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40643230643573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40643230643773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12372440 + ... + 15308942.

It is an arithmetic number, because the mean of its divisors is an integer number (5085008897616).

Almost surely, 2^{40643230643573} is an apocalyptic number.

It is an amenable number.

40643230643573 is a deficient number, since it is larger than the sum of its proper divisors (36840537355).

40643230643573 is a wasteful number, since it uses less digits than its factorization.

40643230643573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949043.

The product of its (nonzero) digits is 13063680, while the sum is 50.

The spelling of 40643230643573 in words is "forty trillion, six hundred forty-three billion, two hundred thirty million, six hundred forty-three thousand, five hundred seventy-three".