813371327937 has 96 divisors (see below), whose sum is σ = 1374948027648. Its totient is φ = 453719605248.

The previous prime is 813371327897. The next prime is 813371327939. The reversal of 813371327937 is 739723173318.

813371327937 is a `hidden beast` number, since 8 + 1 + 337 + 1 + 3 + 279 + 37 = 666.

It is not a de Polignac number, because 813371327937 - 2¹⁰ = 813371326913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (813371327939) 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 95 ways as a sum of consecutive naturals, for example, 853484653 + ... + 853485605.

It is an arithmetic number, because the mean of its divisors is an integer number (14322375288).

Almost surely, 2^813371327937 is an apocalyptic number.

It is an amenable number.

813371327937 is a deficient number, since it is larger than the sum of its proper divisors (561576699711).

813371327937 is a wasteful number, since it uses less digits than its factorization.

813371327937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039 (or 2036 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 54.

The spelling of 813371327937 in words is "eight hundred thirteen billion, three hundred seventy-one million, three hundred twenty-seven thousand, nine hundred thirty-seven".