813037642596 has 81 divisors (see below), whose sum is σ = 2087241174291. Its totient is φ = 266848561584.

The previous prime is 813037642589. The next prime is 813037642597. The reversal of 813037642596 is 695246730318.

The square root of 813037642596 is 901686.

It is a perfect power (a square), and thus also a powerful number.

813037642596 is a `hidden beast` number, since 8 + 1 + 3 + 0 + 3 + 7 + 6 + 42 + 596 = 666.

It is a super-2 number, since 2×813037642596² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813037642597) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 362476651 + ... + 362478893.

It is a 1-persistent number, because it is pandigital, but 2⋅813037642596 = 1626075285192 is not.

Almost surely, 2^813037642596 is an apocalyptic number.

813037642596 is the 901686-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 813037642596

813037642596 is an abundant number, since it is smaller than the sum of its proper divisors (1274203531695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

813037642596 is an equidigital number, since it uses as much as digits as its factorization.

813037642596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630 (or 2315 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 813037642596 in words is "eight hundred thirteen billion, thirty-seven million, six hundred forty-two thousand, five hundred ninety-six".