30798145298 has 18 divisors (see below), whose sum is σ = 47747450727. Its totient is φ = 14898605580.

The previous prime is 30798145153. The next prime is 30798145307. The reversal of 30798145298 is 89254189703.

It can be written as a sum of positive squares in only one way, i.e., 15399072649 + 15399072649 = 124093^2 + 124093^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=124093.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7691765 + ... + 7695767.

Almost surely, 2^30798145298 is an apocalyptic number.

30798145298 is a deficient number, since it is larger than the sum of its proper divisors (16949305429).

30798145298 is an frugal number, since it uses more digits than its factorization.

30798145298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8070 (or 4036 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 30798145298 in words is "thirty billion, seven hundred ninety-eight million, one hundred forty-five thousand, two hundred ninety-eight".