9980870126797 has 4 divisors (see below), whose sum is σ = 9980905934560. Its totient is φ = 9980834319036.

The previous prime is 9980870126783. The next prime is 9980870126839. The reversal of 9980870126797 is 7976210780899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9980870126797 - 2¹¹ = 9980870124749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980870126767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17482473 + ... + 18044350.

It is an arithmetic number, because the mean of its divisors is an integer number (2495226483640).

Almost surely, 2^{9980870126797} is an apocalyptic number.

It is an amenable number.

9980870126797 is a deficient number, since it is larger than the sum of its proper divisors (35807763).

9980870126797 is a wasteful number, since it uses less digits than its factorization.

9980870126797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35807762.

The product of its (nonzero) digits is 192036096, while the sum is 73.

The spelling of 9980870126797 in words is "nine trillion, nine hundred eighty billion, eight hundred seventy million, one hundred twenty-six thousand, seven hundred ninety-seven".