30630538493 has 2 divisors, whose sum is σ = 30630538494. Its totient is φ = 30630538492.

The previous prime is 30630538483. The next prime is 30630538513. The reversal of 30630538493 is 39483503603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23847698329 + 6782840164 = 154427^2 + 82358^2 .

It is a cyclic number.

It is not a de Polignac number, because 30630538493 - 2³⁰ = 29556796669 is a prime.

It is a super-2 number, since 2×30630538493² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30630538403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15315269246 + 15315269247.

It is an arithmetic number, because the mean of its divisors is an integer number (15315269247).

Almost surely, 2^30630538493 is an apocalyptic number.

It is an amenable number.

30630538493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30630538493 is an equidigital number, since it uses as much as digits as its factorization.

30630538493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 44.

The spelling of 30630538493 in words is "thirty billion, six hundred thirty million, five hundred thirty-eight thousand, four hundred ninety-three".