30674165721 has 8 divisors (see below), whose sum is σ = 40932946464. Its totient is φ = 20432414400.

The previous prime is 30674165719. The next prime is 30674165729. The reversal of 30674165721 is 12756147603.

It is a happy number.

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

It is not a de Polignac number, because 30674165721 - 2¹ = 30674165719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30674165729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4253151 + ... + 4260356.

It is an arithmetic number, because the mean of its divisors is an integer number (5116618308).

Almost surely, 2^30674165721 is an apocalyptic number.

It is an amenable number.

30674165721 is a deficient number, since it is larger than the sum of its proper divisors (10258780743).

30674165721 is a wasteful number, since it uses less digits than its factorization.

30674165721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514711.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 30674165721 in words is "thirty billion, six hundred seventy-four million, one hundred sixty-five thousand, seven hundred twenty-one".