813202663896 has 96 divisors (see below), whose sum is σ = 2524996599840. Its totient is φ = 231610627584.

The previous prime is 813202663877. The next prime is 813202663921. The reversal of 813202663896 is 698366202318.

It is a super-2 number, since 2×813202663896² (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 23 ways as a sum of consecutive naturals, for example, 2385181 + ... + 2704716.

It is an arithmetic number, because the mean of its divisors is an integer number (26302047915).

Almost surely, 2^813202663896 is an apocalyptic number.

It is an amenable number.

813202663896 is an abundant number, since it is smaller than the sum of its proper divisors (1711793935944).

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

813202663896 is a wasteful number, since it uses less digits than its factorization.

813202663896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090233 (or 5090226 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 813202663896 in words is "eight hundred thirteen billion, two hundred two million, six hundred sixty-three thousand, eight hundred ninety-six".