213919133885 has 8 divisors (see below), whose sum is σ = 259195223040. Its totient is φ = 169473798864.

The previous prime is 213919133873. The next prime is 213919133893. The reversal of 213919133885 is 588331919312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213919133885 - 2¹² = 213919129789 is a prime.

It is a super-2 number, since 2×213919133885² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 207687965 + ... + 207688994.

It is an arithmetic number, because the mean of its divisors is an integer number (32399402880).

Almost surely, 2^213919133885 is an apocalyptic number.

It is an amenable number.

213919133885 is a deficient number, since it is larger than the sum of its proper divisors (45276089155).

213919133885 is a wasteful number, since it uses less digits than its factorization.

213919133885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415377067.

The product of its digits is 1399680, while the sum is 53.

The spelling of 213919133885 in words is "two hundred thirteen billion, nine hundred nineteen million, one hundred thirty-three thousand, eight hundred eighty-five".