30720773834 has 8 divisors (see below), whose sum is σ = 46087400928. Its totient is φ = 15358306860.

The previous prime is 30720773833. The next prime is 30720773849. The reversal of 30720773834 is 43837702703.

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 (30720773833) 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 3 ways as a sum of consecutive naturals, for example, 1021502 + ... + 1051145.

It is an arithmetic number, because the mean of its divisors is an integer number (5760925116).

Almost surely, 2^30720773834 is an apocalyptic number.

30720773834 is a deficient number, since it is larger than the sum of its proper divisors (15366627094).

30720773834 is a wasteful number, since it uses less digits than its factorization.

30720773834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080060.

The product of its (nonzero) digits is 592704, while the sum is 44.

The spelling of 30720773834 in words is "thirty billion, seven hundred twenty million, seven hundred seventy-three thousand, eight hundred thirty-four".