9977412768 has 48 divisors (see below), whose sum is σ = 26203818816. Its totient is φ = 3324139520.

The previous prime is 9977412749. The next prime is 9977412817. The reversal of 9977412768 is 8672147799.

It is a Cunningham number, because it is equal to 99887²-1.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174805 + ... + 224747.

It is an arithmetic number, because the mean of its divisors is an integer number (545912892).

Almost surely, 2^9977412768 is an apocalyptic number.

It is an amenable number.

9977412768 is an abundant number, since it is smaller than the sum of its proper divisors (16226406048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9977412768 is a wasteful number, since it uses less digits than its factorization.

9977412768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52037 (or 52029 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 60.

The square root of 9977412768 is about 99886.9999949943. Note that the first 5 decimals coincide. The cubic root of 9977412768 is about 2152.8113766735.

The spelling of 9977412768 in words is "nine billion, nine hundred seventy-seven million, four hundred twelve thousand, seven hundred sixty-eight".