40851569903 has 2 divisors, whose sum is σ = 40851569904. Its totient is φ = 40851569902.

The previous prime is 40851569897. The next prime is 40851569923. The reversal of 40851569903 is 30996515804.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40851569903 - 2²⁸ = 40583134447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40851569923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20425784951 + 20425784952.

It is an arithmetic number, because the mean of its divisors is an integer number (20425784952).

Almost surely, 2^40851569903 is an apocalyptic number.

40851569903 is a deficient number, since it is larger than the sum of its proper divisors (1).

40851569903 is an equidigital number, since it uses as much as digits as its factorization.

40851569903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 40851569903 in words is "forty billion, eight hundred fifty-one million, five hundred sixty-nine thousand, nine hundred three".