30147047389 has 2 divisors, whose sum is σ = 30147047390. Its totient is φ = 30147047388.

The previous prime is 30147047339. The next prime is 30147047401. The reversal of 30147047389 is 98374074103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25381906489 + 4765140900 = 159317^2 + 69030^2 .

It is an emirp because it is prime and its reverse (98374074103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30147047389 - 2¹⁹ = 30146523101 is a prime.

It is a super-3 number, since 3×30147047389³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30147047339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15073523694 + 15073523695.

It is an arithmetic number, because the mean of its divisors is an integer number (15073523695).

Almost surely, 2^30147047389 is an apocalyptic number.

It is an amenable number.

30147047389 is a deficient number, since it is larger than the sum of its proper divisors (1).

30147047389 is an equidigital number, since it uses as much as digits as its factorization.

30147047389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 30147047389 in words is "thirty billion, one hundred forty-seven million, forty-seven thousand, three hundred eighty-nine".