850655521351 has 8 divisors (see below), whose sum is σ = 908038512000. Its totient is φ = 794533695480.

The previous prime is 850655521283. The next prime is 850655521367. The reversal of 850655521351 is 153125556058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 850655521351 - 2¹³ = 850655513159 is a prime.

It is a super-2 number, since 2×850655521351² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850655521451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315289801 + ... + 315292498.

It is an arithmetic number, because the mean of its divisors is an integer number (113504814000).

Almost surely, 2^850655521351 is an apocalyptic number.

850655521351 is a deficient number, since it is larger than the sum of its proper divisors (57382990649).

850655521351 is a wasteful number, since it uses less digits than its factorization.

850655521351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630582389.

The product of its (nonzero) digits is 900000, while the sum is 46.

The spelling of 850655521351 in words is "eight hundred fifty billion, six hundred fifty-five million, five hundred twenty-one thousand, three hundred fifty-one".