213440200254 has 64 divisors (see below), whose sum is σ = 475480411200. Its totient is φ = 70971641856.

The previous prime is 213440200223. The next prime is 213440200313. The reversal of 213440200254 is 452002044312.

213440200254 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 402 + 0 + 0 + 254 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45672862 + ... + 45677534.

It is an arithmetic number, because the mean of its divisors is an integer number (7429381425).

Almost surely, 2^213440200254 is an apocalyptic number.

213440200254 is an abundant number, since it is smaller than the sum of its proper divisors (262040210946).

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

213440200254 is a wasteful number, since it uses less digits than its factorization.

213440200254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6586 (or 6580 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 213440200254 its reverse (452002044312), we get a palindrome (665442244566).

The spelling of 213440200254 in words is "two hundred thirteen billion, four hundred forty million, two hundred thousand, two hundred fifty-four".