850733553749 has 2 divisors, whose sum is σ = 850733553750. Its totient is φ = 850733553748.

The previous prime is 850733553739. The next prime is 850733553773. The reversal of 850733553749 is 947355337058.

850733553749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 707306230225 + 143427323524 = 841015^2 + 378718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-850733553749 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 (850733553739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425366776874 + 425366776875.

It is an arithmetic number, because the mean of its divisors is an integer number (425366776875).

Almost surely, 2^850733553749 is an apocalyptic number.

It is an amenable number.

850733553749 is a deficient number, since it is larger than the sum of its proper divisors (1).

850733553749 is an equidigital number, since it uses as much as digits as its factorization.

850733553749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628000, while the sum is 59.

The spelling of 850733553749 in words is "eight hundred fifty billion, seven hundred thirty-three million, five hundred fifty-three thousand, seven hundred forty-nine".