213833478634 has 8 divisors (see below), whose sum is σ = 320752185120. Its totient is φ = 106916083596.

The previous prime is 213833478631. The next prime is 213833478637. The reversal of 213833478634 is 436874338312.

It is an interprime number because it is at equal distance from previous prime (213833478631) and next prime (213833478637).

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

It is not an unprimeable number, because it can be changed into a prime (213833478631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431787 + ... + 783649.

It is an arithmetic number, because the mean of its divisors is an integer number (40094023140).

Almost surely, 2^213833478634 is an apocalyptic number.

213833478634 is a deficient number, since it is larger than the sum of its proper divisors (106918706486).

213833478634 is a wasteful number, since it uses less digits than its factorization.

213833478634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655724.

The product of its digits is 6967296, while the sum is 52.

The spelling of 213833478634 in words is "two hundred thirteen billion, eight hundred thirty-three million, four hundred seventy-eight thousand, six hundred thirty-four".