213800813632 has 28 divisors (see below), whose sum is σ = 484869703360. Its totient is φ = 91628919936.

The previous prime is 213800813533. The next prime is 213800813659. The reversal of 213800813632 is 236318008312.

It is a tau number, because it is divible by the number of its divisors (28).

It is a junction number, because it is equal to n+sod(n) for n = 213800813591 and 213800813600.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238616532 + ... + 238617427.

It is an arithmetic number, because the mean of its divisors is an integer number (17316775120).

Almost surely, 2^213800813632 is an apocalyptic number.

It is an amenable number.

213800813632 is an abundant number, since it is smaller than the sum of its proper divisors (271068889728).

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

213800813632 is an equidigital number, since it uses as much as digits as its factorization.

213800813632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477233978 (or 477233968 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 213800813632 in words is "two hundred thirteen billion, eight hundred million, eight hundred thirteen thousand, six hundred thirty-two".