30730672520 has 64 divisors (see below), whose sum is σ = 69427670400. Its totient is φ = 12241958400.

The previous prime is 30730672519. The next prime is 30730672549. The reversal of 30730672520 is 2527603703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12045245 + ... + 12047795.

It is an arithmetic number, because the mean of its divisors is an integer number (1084807350).

Almost surely, 2^30730672520 is an apocalyptic number.

It is an amenable number.

30730672520 is an abundant number, since it is smaller than the sum of its proper divisors (38696997880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30730672520 is a wasteful number, since it uses less digits than its factorization.

30730672520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678 (or 3674 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 35.

The spelling of 30730672520 in words is "thirty billion, seven hundred thirty million, six hundred seventy-two thousand, five hundred twenty".