40243650322643 has 8 divisors (see below), whose sum is σ = 41004870718608. Its totient is φ = 39482500528224.

The previous prime is 40243650322627. The next prime is 40243650322721. The reversal of 40243650322643 is 34622305634204.

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

It is a cyclic number.

It is not a de Polignac number, because 40243650322643 - 2⁴ = 40243650322627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40243650322594 and 40243650322603.

It is not an unprimeable number, because it can be changed into a prime (40243650322243) 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, 16498880 + ... + 18780317.

It is an arithmetic number, because the mean of its divisors is an integer number (5125608839826).

Almost surely, 2^{40243650322643} is an apocalyptic number.

40243650322643 is a deficient number, since it is larger than the sum of its proper divisors (761220395965).

40243650322643 is a wasteful number, since it uses less digits than its factorization.

40243650322643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35300773.

The product of its (nonzero) digits is 2488320, while the sum is 44.

Adding to 40243650322643 its reverse (34622305634204), we get a palindrome (74865955956847).

The spelling of 40243650322643 in words is "forty trillion, two hundred forty-three billion, six hundred fifty million, three hundred twenty-two thousand, six hundred forty-three".