40856569063 has 2 divisors, whose sum is σ = 40856569064. Its totient is φ = 40856569062.

The previous prime is 40856569037. The next prime is 40856569069. The reversal of 40856569063 is 36096565804.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40856569063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40856569063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40856569069) 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 as a sum of consecutive naturals, namely, 20428284531 + 20428284532.

It is an arithmetic number, because the mean of its divisors is an integer number (20428284532).

Almost surely, 2^40856569063 is an apocalyptic number.

40856569063 is a deficient number, since it is larger than the sum of its proper divisors (1).

40856569063 is an equidigital number, since it uses as much as digits as its factorization.

40856569063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 40856569063 in words is "forty billion, eight hundred fifty-six million, five hundred sixty-nine thousand, sixty-three".