41538503857 has 2 divisors, whose sum is σ = 41538503858. Its totient is φ = 41538503856.

The previous prime is 41538503801. The next prime is 41538503863. The reversal of 41538503857 is 75830583514.

41538503857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40292131441 + 1246372416 = 200729^2 + 35304^2 .

It is a cyclic number.

It is not a de Polignac number, because 41538503857 - 2³¹ = 39391020209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41538503857.

It is not a weakly prime, because it can be changed into another prime (41538503257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20769251928 + 20769251929.

It is an arithmetic number, because the mean of its divisors is an integer number (20769251929).

Almost surely, 2^41538503857 is an apocalyptic number.

It is an amenable number.

41538503857 is a deficient number, since it is larger than the sum of its proper divisors (1).

41538503857 is an equidigital number, since it uses as much as digits as its factorization.

41538503857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 41538503857 in words is "forty-one billion, five hundred thirty-eight million, five hundred three thousand, eight hundred fifty-seven".