813252840008 has 32 divisors (see below), whose sum is σ = 1743176395200. Its totient is φ = 348438583872.

The previous prime is 813252839983. The next prime is 813252840067. The reversal of 813252840008 is 800048252318.

It is a super-2 number, since 2×813252840008² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1848503 + ... + 2245766.

It is an arithmetic number, because the mean of its divisors is an integer number (54474262350).

Almost surely, 2^813252840008 is an apocalyptic number.

It is an amenable number.

813252840008 is an abundant number, since it is smaller than the sum of its proper divisors (929923555192).

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

813252840008 is a wasteful number, since it uses less digits than its factorization.

813252840008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097829 (or 4097825 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 813252840008 in words is "eight hundred thirteen billion, two hundred fifty-two million, eight hundred forty thousand, eight".