9980351571 has 4 divisors (see below), whose sum is σ = 13307135432. Its totient is φ = 6653567712.

The previous prime is 9980351561. The next prime is 9980351587. The reversal of 9980351571 is 1751530899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1751530899 = 3 ⋅583843633.

It is not a de Polignac number, because 9980351571 - 2⁷ = 9980351443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9980351571.

It is not an unprimeable number, because it can be changed into a prime (9980351531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663391926 + ... + 1663391931.

It is an arithmetic number, because the mean of its divisors is an integer number (3326783858).

Almost surely, 2^9980351571 is an apocalyptic number.

9980351571 is a deficient number, since it is larger than the sum of its proper divisors (3326783861).

9980351571 is a wasteful number, since it uses less digits than its factorization.

9980351571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326783860.

The product of its (nonzero) digits is 340200, while the sum is 48.

The square root of 9980351571 is about 99901.7095499371. The cubic root of 9980351571 is about 2153.0227229618.

The spelling of 9980351571 in words is "nine billion, nine hundred eighty million, three hundred fifty-one thousand, five hundred seventy-one".