9977765432112 has 40 divisors (see below), whose sum is σ = 28639882260080. Its totient is φ = 3325921810560.

The previous prime is 9977765432099. The next prime is 9977765432113. The reversal of 9977765432112 is 2112345677799.

9977765432112 is a `hidden beast` number, since 9 + 9 + 7 + 7 + 76 + 543 + 2 + 1 + 12 = 666.

It is a super-3 number, since 3×9977765432112³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9977765432112.

It is not an unprimeable number, because it can be changed into a prime (9977765432113) 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, 11548339189 + ... + 11548340052.

It is an arithmetic number, because the mean of its divisors is an integer number (715997056502).

Almost surely, 2^{9977765432112} is an apocalyptic number.

It is an amenable number.

9977765432112 is an abundant number, since it is smaller than the sum of its proper divisors (18662116827968).

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

9977765432112 is a wasteful number, since it uses less digits than its factorization.

9977765432112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23096679258 (or 23096679246 counting only the distinct ones).

The product of its digits is 40007520, while the sum is 63.

The spelling of 9977765432112 in words is "nine trillion, nine hundred seventy-seven billion, seven hundred sixty-five million, four hundred thirty-two thousand, one hundred twelve".