813326100860 has 96 divisors (see below), whose sum is σ = 2104383039360. Its totient is φ = 257129054208.

The previous prime is 813326100827. The next prime is 813326100863. The reversal of 813326100860 is 68001623318.

It is a super-2 number, since 2×813326100860² (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 (813326100863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1466876 + ... + 1943804.

It is an arithmetic number, because the mean of its divisors is an integer number (21920656660).

Almost surely, 2^813326100860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 813326100860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1052191519680).

813326100860 is an abundant number, since it is smaller than the sum of its proper divisors (1291056938500).

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

813326100860 is a wasteful number, since it uses less digits than its factorization.

813326100860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477895 (or 477893 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 813326100860 in words is "eight hundred thirteen billion, three hundred twenty-six million, one hundred thousand, eight hundred sixty".