813456168 has 64 divisors (see below), whose sum is σ = 2328600960. Its totient is φ = 231972096.

The previous prime is 813456131. The next prime is 813456197. The reversal of 813456168 is 861654318.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89230 + ... + 97922.

It is an arithmetic number, because the mean of its divisors is an integer number (36384390).

Almost surely, 2^813456168 is an apocalyptic number.

It is an amenable number.

813456168 is an abundant number, since it is smaller than the sum of its proper divisors (1515144792).

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

813456168 is a wasteful number, since it uses less digits than its factorization.

813456168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266 (or 9262 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 813456168 is about 28521.1529921215. The cubic root of 813456168 is about 933.4936875276.

The spelling of 813456168 in words is "eight hundred thirteen million, four hundred fifty-six thousand, one hundred sixty-eight".