30705664142 has 8 divisors (see below), whose sum is σ = 46164868176. Its totient is φ = 15317374752.

The previous prime is 30705664139. The next prime is 30705664151. The reversal of 30705664142 is 24146650703.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 30705664096 and 30705664105.

It is a congruent number.

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, 17727578 + ... + 17729309.

It is an arithmetic number, because the mean of its divisors is an integer number (5770608522).

Almost surely, 2^30705664142 is an apocalyptic number.

30705664142 is a deficient number, since it is larger than the sum of its proper divisors (15459204034).

30705664142 is a wasteful number, since it uses less digits than its factorization.

30705664142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35457322.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 30705664142 in words is "thirty billion, seven hundred five million, six hundred sixty-four thousand, one hundred forty-two".