30647881373 has 2 divisors, whose sum is σ = 30647881374. Its totient is φ = 30647881372.

The previous prime is 30647881321. The next prime is 30647881379. The reversal of 30647881373 is 37318874603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16256760004 + 14391121369 = 127502^2 + 119963^2 .

It is a cyclic number.

It is not a de Polignac number, because 30647881373 - 2¹⁶ = 30647815837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30647881379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15323940686 + 15323940687.

It is an arithmetic number, because the mean of its divisors is an integer number (15323940687).

Almost surely, 2^30647881373 is an apocalyptic number.

It is an amenable number.

30647881373 is a deficient number, since it is larger than the sum of its proper divisors (1).

30647881373 is an equidigital number, since it uses as much as digits as its factorization.

30647881373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 30647881373 in words is "thirty billion, six hundred forty-seven million, eight hundred eighty-one thousand, three hundred seventy-three".