30730712547 has 32 divisors (see below), whose sum is σ = 42830726400. Its totient is φ = 19574126208.

The previous prime is 30730712543. The next prime is 30730712561. The reversal of 30730712547 is 74521703703.

It is not a de Polignac number, because 30730712547 - 2² = 30730712543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30730712543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15144729 + ... + 15146757.

It is an arithmetic number, because the mean of its divisors is an integer number (1338460200).

Almost surely, 2^30730712547 is an apocalyptic number.

30730712547 is a deficient number, since it is larger than the sum of its proper divisors (12100013853).

30730712547 is a wasteful number, since it uses less digits than its factorization.

30730712547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795.

The product of its (nonzero) digits is 123480, while the sum is 39.

The spelling of 30730712547 in words is "thirty billion, seven hundred thirty million, seven hundred twelve thousand, five hundred forty-seven".