30988662893 has 2 divisors, whose sum is σ = 30988662894. Its totient is φ = 30988662892.

The previous prime is 30988662877. The next prime is 30988662931. The reversal of 30988662893 is 39826688903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30150155044 + 838507849 = 173638^2 + 28957^2 .

It is a cyclic number.

It is not a de Polignac number, because 30988662893 - 2⁴ = 30988662877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30988662853) 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 as a sum of consecutive naturals, namely, 15494331446 + 15494331447.

It is an arithmetic number, because the mean of its divisors is an integer number (15494331447).

Almost surely, 2^30988662893 is an apocalyptic number.

It is an amenable number.

30988662893 is a deficient number, since it is larger than the sum of its proper divisors (1).

30988662893 is an equidigital number, since it uses as much as digits as its factorization.

30988662893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26873856, while the sum is 62.

The spelling of 30988662893 in words is "thirty billion, nine hundred eighty-eight million, six hundred sixty-two thousand, eight hundred ninety-three".