850417021245 has 64 divisors (see below), whose sum is σ = 1497109121280. Its totient is φ = 412191901440.

The previous prime is 850417021241. The next prime is 850417021249. The reversal of 850417021245 is 542120714058.

It is an interprime number because it is at equal distance from previous prime (850417021241) and next prime (850417021249).

It is not a de Polignac number, because 850417021245 - 2² = 850417021241 is a prime.

It is a super-2 number, since 2×850417021245² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850417021241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 98003847 + ... + 98012523.

It is an arithmetic number, because the mean of its divisors is an integer number (23392330020).

Almost surely, 2^850417021245 is an apocalyptic number.

It is an amenable number.

850417021245 is a deficient number, since it is larger than the sum of its proper divisors (646692100035).

850417021245 is a wasteful number, since it uses less digits than its factorization.

850417021245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13627 (or 13605 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 850417021245 in words is "eight hundred fifty billion, four hundred seventeen million, twenty-one thousand, two hundred forty-five".