30197345729 has 2 divisors, whose sum is σ = 30197345730. Its totient is φ = 30197345728.

The previous prime is 30197345693. The next prime is 30197345749. The reversal of 30197345729 is 92754379103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15146963329 + 15050382400 = 123073^2 + 122680^2 .

It is a cyclic number.

It is not a de Polignac number, because 30197345729 - 2¹² = 30197341633 is a prime.

It is not a weakly prime, because it can be changed into another prime (30197345749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15098672864 + 15098672865.

It is an arithmetic number, because the mean of its divisors is an integer number (15098672865).

Almost surely, 2^30197345729 is an apocalyptic number.

It is an amenable number.

30197345729 is a deficient number, since it is larger than the sum of its proper divisors (1).

30197345729 is an equidigital number, since it uses as much as digits as its factorization.

30197345729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The spelling of 30197345729 in words is "thirty billion, one hundred ninety-seven million, three hundred forty-five thousand, seven hundred twenty-nine".