9971763889 has 8 divisors (see below), whose sum is σ = 9990956448. Its totient is φ = 9952591200.

The previous prime is 9971763877. The next prime is 9971763911. The reversal of 9971763889 is 9883671799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9971763889 - 2⁹ = 9971763377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9971763869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312269 + ... + 1319845.

It is an arithmetic number, because the mean of its divisors is an integer number (1248869556).

Almost surely, 2^9971763889 is an apocalyptic number.

It is an amenable number.

9971763889 is a deficient number, since it is larger than the sum of its proper divisors (19192559).

9971763889 is a wasteful number, since it uses less digits than its factorization.

9971763889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9935.

The product of its digits is 41150592, while the sum is 67.

The square root of 9971763889 is about 99858.7196443055. The cubic root of 9971763889 is about 2152.4050165937.

The spelling of 9971763889 in words is "nine billion, nine hundred seventy-one million, seven hundred sixty-three thousand, eight hundred eighty-nine".