30389502947 has 2 divisors, whose sum is σ = 30389502948. Its totient is φ = 30389502946.

The previous prime is 30389502931. The next prime is 30389502959. The reversal of 30389502947 is 74920598303.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30389502947 - 2⁴ = 30389502931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30389502895 and 30389502904.

It is not a weakly prime, because it can be changed into another prime (30389502907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15194751473 + 15194751474.

It is an arithmetic number, because the mean of its divisors is an integer number (15194751474).

Almost surely, 2^30389502947 is an apocalyptic number.

30389502947 is a deficient number, since it is larger than the sum of its proper divisors (1).

30389502947 is an equidigital number, since it uses as much as digits as its factorization.

30389502947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 30389502947 in words is "thirty billion, three hundred eighty-nine million, five hundred two thousand, nine hundred forty-seven".