30448047989 has 2 divisors, whose sum is σ = 30448047990. Its totient is φ = 30448047988.

The previous prime is 30448047961. The next prime is 30448048019. The reversal of 30448047989 is 98974084403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30071028100 + 377019889 = 173410^2 + 19417^2 .

It is a cyclic number.

It is not a de Polignac number, because 30448047989 - 2¹² = 30448043893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30448047919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15224023994 + 15224023995.

It is an arithmetic number, because the mean of its divisors is an integer number (15224023995).

Almost surely, 2^30448047989 is an apocalyptic number.

It is an amenable number.

30448047989 is a deficient number, since it is larger than the sum of its proper divisors (1).

30448047989 is an equidigital number, since it uses as much as digits as its factorization.

30448047989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 30448047989 in words is "thirty billion, four hundred forty-eight million, forty-seven thousand, nine hundred eighty-nine".