30948927891823 has 2 divisors, whose sum is σ = 30948927891824. Its totient is φ = 30948927891822.

The previous prime is 30948927891797. The next prime is 30948927891881. The reversal of 30948927891823 is 32819872984903.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30948927891823 - 2¹³ = 30948927883631 is a prime.

It is a super-2 number, since 2×30948927891823² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30948927891223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15474463945911 + 15474463945912.

It is an arithmetic number, because the mean of its divisors is an integer number (15474463945912).

Almost surely, 2^{30948927891823} is an apocalyptic number.

30948927891823 is a deficient number, since it is larger than the sum of its proper divisors (1).

30948927891823 is an equidigital number, since it uses as much as digits as its factorization.

30948927891823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376233984, while the sum is 73.

The spelling of 30948927891823 in words is "thirty trillion, nine hundred forty-eight billion, nine hundred twenty-seven million, eight hundred ninety-one thousand, eight hundred twenty-three".