53850018389 has 2 divisors, whose sum is σ = 53850018390. Its totient is φ = 53850018388.

The previous prime is 53850018371. The next prime is 53850018401. The reversal of 53850018389 is 98381005835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28706524900 + 25143493489 = 169430^2 + 158567^2 .

It is a cyclic number.

It is not a de Polignac number, because 53850018389 - 2¹² = 53850014293 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 (53850018589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26925009194 + 26925009195.

It is an arithmetic number, because the mean of its divisors is an integer number (26925009195).

Almost surely, 2^53850018389 is an apocalyptic number.

It is an amenable number.

53850018389 is a deficient number, since it is larger than the sum of its proper divisors (1).

53850018389 is an equidigital number, since it uses as much as digits as its factorization.

53850018389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 53850018389 in words is "fifty-three billion, eight hundred fifty million, eighteen thousand, three hundred eighty-nine".