813134421324 has 18 divisors (see below), whose sum is σ = 2055423120660. Its totient is φ = 271044807096.

The previous prime is 813134421311. The next prime is 813134421347. The reversal of 813134421324 is 423124431318.

813134421324 is a `hidden beast` number, since 81 + 3 + 1 + 3 + 442 + 132 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×813134421324² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 22587067259 = 813134421324 / (8 + 1 + 3 + 1 + 3 + 4 + 4 + 2 + 1 + 3 + 2 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11293533594 + ... + 11293533665.

It is an arithmetic number, because the mean of its divisors is an integer number (114190173370).

Almost surely, 2^813134421324 is an apocalyptic number.

It is an amenable number.

813134421324 is an abundant number, since it is smaller than the sum of its proper divisors (1242288699336).

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

813134421324 is a wasteful number, since it uses less digits than its factorization.

813134421324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22587067269 (or 22587067264 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The spelling of 813134421324 in words is "eight hundred thirteen billion, one hundred thirty-four million, four hundred twenty-one thousand, three hundred twenty-four".