30138680847 has 32 divisors (see below), whose sum is σ = 44385200640. Its totient is φ = 18189494400.

The previous prime is 30138680839. The next prime is 30138680849. The reversal of 30138680847 is 74808683103.

It is not a de Polignac number, because 30138680847 - 2³ = 30138680839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30138680796 and 30138680805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30138680849) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 946654 + ... + 977972.

It is an arithmetic number, because the mean of its divisors is an integer number (1387037520).

Almost surely, 2^30138680847 is an apocalyptic number.

30138680847 is a deficient number, since it is larger than the sum of its proper divisors (14246519793).

30138680847 is a wasteful number, since it uses less digits than its factorization.

30138680847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31596 (or 31574 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 30138680847 in words is "thirty billion, one hundred thirty-eight million, six hundred eighty thousand, eight hundred forty-seven".