813069072660 has 384 divisors, whose sum is σ = 2534510684160. Its totient is φ = 193522120704.

The previous prime is 813069072593. The next prime is 813069072677. The reversal of 813069072660 is 66270960318.

It is a super-2 number, since 2×813069072660² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 802634314 + ... + 802635326.

It is an arithmetic number, because the mean of its divisors is an integer number (6600288240).

Almost surely, 2^813069072660 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 813069072660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1267255342080).

813069072660 is an abundant number, since it is smaller than the sum of its proper divisors (1721441611500).

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

813069072660 is a wasteful number, since it uses less digits than its factorization.

813069072660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 813069072660 in words is "eight hundred thirteen billion, sixty-nine million, seventy-two thousand, six hundred sixty".