30504739493 has 2 divisors, whose sum is σ = 30504739494. Its totient is φ = 30504739492.

The previous prime is 30504739477. The next prime is 30504739513. The reversal of 30504739493 is 39493740503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18218790529 + 12285948964 = 134977^2 + 110842^2 .

It is a cyclic number.

It is not a de Polignac number, because 30504739493 - 2⁴ = 30504739477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30504739453) 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, 15252369746 + 15252369747.

It is an arithmetic number, because the mean of its divisors is an integer number (15252369747).

Almost surely, 2^30504739493 is an apocalyptic number.

It is an amenable number.

30504739493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30504739493 is an equidigital number, since it uses as much as digits as its factorization.

30504739493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 47.

The spelling of 30504739493 in words is "thirty billion, five hundred four million, seven hundred thirty-nine thousand, four hundred ninety-three".