813285404248 has 32 divisors (see below), whose sum is σ = 1525894569360. Its totient is φ = 406380298240.

The previous prime is 813285404203. The next prime is 813285404251. The reversal of 813285404248 is 842404582318.

It is a super-2 number, since 2×813285404248² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 153534336 + ... + 153539632.

Almost surely, 2^813285404248 is an apocalyptic number.

It is an amenable number.

813285404248 is a deficient number, since it is larger than the sum of its proper divisors (712609165112).

813285404248 is a wasteful number, since it uses less digits than its factorization.

813285404248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14067 (or 14063 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 49.

The spelling of 813285404248 in words is "eight hundred thirteen billion, two hundred eighty-five million, four hundred four thousand, two hundred forty-eight".