30539403071993 has 2 divisors, whose sum is σ = 30539403071994. Its totient is φ = 30539403071992.

The previous prime is 30539403071977. The next prime is 30539403072007. The reversal of 30539403071993 is 39917030493503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29953761838009 + 585641233984 = 5473003^2 + 765272^2 .

It is a cyclic number.

It is not a de Polignac number, because 30539403071993 - 2⁴ = 30539403071977 is a prime.

It is not a weakly prime, because it can be changed into another prime (30539403071293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15269701535996 + 15269701535997.

It is an arithmetic number, because the mean of its divisors is an integer number (15269701535997).

Almost surely, 2^{30539403071993} is an apocalyptic number.

It is an amenable number.

30539403071993 is a deficient number, since it is larger than the sum of its proper divisors (1).

30539403071993 is an equidigital number, since it uses as much as digits as its factorization.

30539403071993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8266860, while the sum is 56.

The spelling of 30539403071993 in words is "thirty trillion, five hundred thirty-nine billion, four hundred three million, seventy-one thousand, nine hundred ninety-three".