9977475312 has 120 divisors (see below), whose sum is σ = 32349474144. Its totient is φ = 2811635712.

The previous prime is 9977475289. The next prime is 9977475359. The reversal of 9977475312 is 2135747799.

9977475312 is a `hidden beast` number, since 99 + 77 + 475 + 3 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5788 + ... + 141380.

Almost surely, 2^9977475312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9977475312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16174737072).

9977475312 is an abundant number, since it is smaller than the sum of its proper divisors (22371998832).

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

9977475312 is a wasteful number, since it uses less digits than its factorization.

9977475312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135687 (or 135678 counting only the distinct ones).

The product of its digits is 3333960, while the sum is 54.

The square root of 9977475312 is about 99887.3130682771. The cubic root of 9977475312 is about 2152.8158750057.

The spelling of 9977475312 in words is "nine billion, nine hundred seventy-seven million, four hundred seventy-five thousand, three hundred twelve".