9976542120 has 64 divisors (see below), whose sum is σ = 33255144000. Its totient is φ = 2660410944.

The previous prime is 9976542061. The next prime is 9976542143. The reversal of 9976542120 is 212456799.

9976542120 is a `hidden beast` number, since 9 + 97 + 6 + 542 + 12 + 0 = 666.

9976542120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4617690 + ... + 4619849.

It is an arithmetic number, because the mean of its divisors is an integer number (519611625).

Almost surely, 2^9976542120 is an apocalyptic number.

9976542120 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9976542120 is an abundant number, since it is smaller than the sum of its proper divisors (23278601880).

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

9976542120 is a wasteful number, since it uses less digits than its factorization.

9976542120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9237559 (or 9237549 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 9976542120 is about 99882.6417351884. The cubic root of 9976542120 is about 2152.7487553812.

The spelling of 9976542120 in words is "nine billion, nine hundred seventy-six million, five hundred forty-two thousand, one hundred twenty".