213633398468 has 24 divisors (see below), whose sum is σ = 427579431552. Its totient is φ = 91490177664.

The previous prime is 213633398453. The next prime is 213633398471. The reversal of 213633398468 is 864893336312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2752421 + ... + 2828972.

It is an arithmetic number, because the mean of its divisors is an integer number (17815809648).

Almost surely, 2^213633398468 is an apocalyptic number.

213633398468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213633398468 is an abundant number, since it is smaller than the sum of its proper divisors (213946033084).

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

213633398468 is a wasteful number, since it uses less digits than its factorization.

213633398468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582771 (or 5582769 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 56.

The spelling of 213633398468 in words is "two hundred thirteen billion, six hundred thirty-three million, three hundred ninety-eight thousand, four hundred sixty-eight".