30848291993 has 4 divisors (see below), whose sum is σ = 30855227088. Its totient is φ = 30841356900.

The previous prime is 30848291963. The next prime is 30848292017. The reversal of 30848291993 is 39919284803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39919284803 = 173 ⋅230747311.

It is a cyclic number.

It is not a de Polignac number, because 30848291993 - 2⁸ = 30848291737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30848291923) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3460871 + ... + 3469772.

It is an arithmetic number, because the mean of its divisors is an integer number (7713806772).

Almost surely, 2^30848291993 is an apocalyptic number.

It is an amenable number.

30848291993 is a deficient number, since it is larger than the sum of its proper divisors (6935095).

30848291993 is an equidigital number, since it uses as much as digits as its factorization.

30848291993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6935094.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 30848291993 in words is "thirty billion, eight hundred forty-eight million, two hundred ninety-one thousand, nine hundred ninety-three".