813738653876 has 24 divisors (see below), whose sum is σ = 1547346850560. Its totient is φ = 373021113600.

The previous prime is 813738653873. The next prime is 813738653909. The reversal of 813738653876 is 678356837318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813738653873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172692605 + ... + 172697316.

It is an arithmetic number, because the mean of its divisors is an integer number (64472785440).

Almost surely, 2^813738653876 is an apocalyptic number.

It is an amenable number.

813738653876 is a deficient number, since it is larger than the sum of its proper divisors (733608196684).

813738653876 is a wasteful number, since it uses less digits than its factorization.

813738653876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345389975 (or 345389973 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 65.

The spelling of 813738653876 in words is "eight hundred thirteen billion, seven hundred thirty-eight million, six hundred fifty-three thousand, eight hundred seventy-six".