213673288464 has 30 divisors (see below), whose sum is σ = 597988439646. Its totient is φ = 71224429440.

The previous prime is 213673288459. The next prime is 213673288489. The reversal of 213673288464 is 464882376312.

213673288464 is a `hidden beast` number, since 2 + 1 + 36 + 73 + 2 + 88 + 464 = 666.

It can be written as a sum of positive squares in only one way, i.e., 204665760000 + 9007528464 = 452400^2 + 94908^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213673288464.

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, 741920997 + ... + 741921284.

Almost surely, 2^213673288464 is an apocalyptic number.

213673288464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

213673288464 is an abundant number, since it is smaller than the sum of its proper divisors (384315151182).

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

213673288464 is a wasteful number, since it uses less digits than its factorization.

213673288464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483842295 (or 1483842286 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 54.

The spelling of 213673288464 in words is "two hundred thirteen billion, six hundred seventy-three million, two hundred eighty-eight thousand, four hundred sixty-four".