9798947126939 has 2 divisors, whose sum is σ = 9798947126940. Its totient is φ = 9798947126938.

The previous prime is 9798947126923. The next prime is 9798947126953. The reversal of 9798947126939 is 9396217498979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9798947126939 - 2⁴ = 9798947126923 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9798947116939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4899473563469 + 4899473563470.

It is an arithmetic number, because the mean of its divisors is an integer number (4899473563470).

Almost surely, 2^{9798947126939} is an apocalyptic number.

9798947126939 is a deficient number, since it is larger than the sum of its proper divisors (1).

9798947126939 is an equidigital number, since it uses as much as digits as its factorization.

9798947126939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3333197952, while the sum is 83.

The spelling of 9798947126939 in words is "nine trillion, seven hundred ninety-eight billion, nine hundred forty-seven million, one hundred twenty-six thousand, nine hundred thirty-nine".