30198017797 has 2 divisors, whose sum is σ = 30198017798. Its totient is φ = 30198017796.

The previous prime is 30198017701. The next prime is 30198017803. The reversal of 30198017797 is 79771089103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23070268321 + 7127749476 = 151889^2 + 84426^2 .

It is a cyclic number.

It is not a de Polignac number, because 30198017797 - 2¹⁵ = 30197985029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30198017497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15099008898 + 15099008899.

It is an arithmetic number, because the mean of its divisors is an integer number (15099008899).

Almost surely, 2^30198017797 is an apocalyptic number.

It is an amenable number.

30198017797 is a deficient number, since it is larger than the sum of its proper divisors (1).

30198017797 is an equidigital number, since it uses as much as digits as its factorization.

30198017797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 52.

The spelling of 30198017797 in words is "thirty billion, one hundred ninety-eight million, seventeen thousand, seven hundred ninety-seven".