53415845789 has 2 divisors, whose sum is σ = 53415845790. Its totient is φ = 53415845788.

The previous prime is 53415845731. The next prime is 53415845803. The reversal of 53415845789 is 98754851435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47723897764 + 5691948025 = 218458^2 + 75445^2 .

It is a cyclic number.

It is not a de Polignac number, because 53415845789 - 2⁸ = 53415845533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53415845729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26707922894 + 26707922895.

It is an arithmetic number, because the mean of its divisors is an integer number (26707922895).

Almost surely, 2^53415845789 is an apocalyptic number.

It is an amenable number.

53415845789 is a deficient number, since it is larger than the sum of its proper divisors (1).

53415845789 is an equidigital number, since it uses as much as digits as its factorization.

53415845789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192000, while the sum is 59.

The spelling of 53415845789 in words is "fifty-three billion, four hundred fifteen million, eight hundred forty-five thousand, seven hundred eighty-nine".