1850550383257 has 2 divisors, whose sum is σ = 1850550383258. Its totient is φ = 1850550383256.

The previous prime is 1850550383233. The next prime is 1850550383371. The reversal of 1850550383257 is 7523830550581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1833779097241 + 16771286016 = 1354171^2 + 129504^2 .

It is an emirp because it is prime and its reverse (7523830550581) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1850550383257 - 2¹⁵ = 1850550350489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1850554383257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 925275191628 + 925275191629.

It is an arithmetic number, because the mean of its divisors is an integer number (925275191629).

Almost surely, 2^{1850550383257} is an apocalyptic number.

It is an amenable number.

1850550383257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1850550383257 is an equidigital number, since it uses as much as digits as its factorization.

1850550383257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040000, while the sum is 52.

The spelling of 1850550383257 in words is "one trillion, eight hundred fifty billion, five hundred fifty million, three hundred eighty-three thousand, two hundred fifty-seven".