811396696320 has 432 divisors, whose sum is σ = 3377267187840. Its totient is φ = 175700606976.

The previous prime is 811396696309. The next prime is 811396696379. The reversal of 811396696320 is 23696693118.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1267372 + ... + 1796948.

It is an arithmetic number, because the mean of its divisors is an integer number (7817748120).

Almost surely, 2^811396696320 is an apocalyptic number.

811396696320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811396696320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1688633593920).

811396696320 is an abundant number, since it is smaller than the sum of its proper divisors (2565870491520).

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

811396696320 is a wasteful number, since it uses less digits than its factorization.

811396696320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529630 (or 529613 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

It can be divided in two parts, 811396 and 696320, that added together give a triangular number (1507716 = T₁₇₃₆).

The spelling of 811396696320 in words is "eight hundred eleven billion, three hundred ninety-six million, six hundred ninety-six thousand, three hundred twenty".