30605407489 has 2 divisors, whose sum is σ = 30605407490. Its totient is φ = 30605407488.

The previous prime is 30605407439. The next prime is 30605407517. The reversal of 30605407489 is 98470450603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30339717489 + 265690000 = 174183^2 + 16300^2 .

It is a cyclic number.

It is not a de Polignac number, because 30605407489 - 2⁷ = 30605407361 is a prime.

It is not a weakly prime, because it can be changed into another prime (30605407409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15302703744 + 15302703745.

It is an arithmetic number, because the mean of its divisors is an integer number (15302703745).

Almost surely, 2^30605407489 is an apocalyptic number.

It is an amenable number.

30605407489 is a deficient number, since it is larger than the sum of its proper divisors (1).

30605407489 is an equidigital number, since it uses as much as digits as its factorization.

30605407489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 30605407489 in words is "thirty billion, six hundred five million, four hundred seven thousand, four hundred eighty-nine".