40243346863 has 2 divisors, whose sum is σ = 40243346864. Its totient is φ = 40243346862.

The previous prime is 40243346821. The next prime is 40243346887. The reversal of 40243346863 is 36864334204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40243346863 - 2²⁵ = 40209792431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40243343863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121673431 + 20121673432.

It is an arithmetic number, because the mean of its divisors is an integer number (20121673432).

Almost surely, 2^40243346863 is an apocalyptic number.

40243346863 is a deficient number, since it is larger than the sum of its proper divisors (1).

40243346863 is an equidigital number, since it uses as much as digits as its factorization.

40243346863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 43.

The spelling of 40243346863 in words is "forty billion, two hundred forty-three million, three hundred forty-six thousand, eight hundred sixty-three".