9976557546 has 48 divisors (see below), whose sum is σ = 21862099584. Its totient is φ = 3287747232.

The previous prime is 9976557541. The next prime is 9976557551. The reversal of 9976557546 is 6457556799.

9976557546 is a `hidden beast` number, since 9 + 9 + 76 + 557 + 5 + 4 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (9976557541) and next prime (9976557551).

Its product of digits (71442000) is a multiple of the sum of its prime divisors (9072).

It is not an unprimeable number, because it can be changed into a prime (9976557541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1195380 + ... + 1203696.

It is an arithmetic number, because the mean of its divisors is an integer number (455460408).

Almost surely, 2^9976557546 is an apocalyptic number.

9976557546 is an abundant number, since it is smaller than the sum of its proper divisors (11885542038).

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

9976557546 is a wasteful number, since it uses less digits than its factorization.

9976557546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9075 (or 9072 counting only the distinct ones).

The product of its digits is 71442000, while the sum is 63.

The square root of 9976557546 is about 99882.7189557833. The cubic root of 9976557546 is about 2152.7498649268.

The spelling of 9976557546 in words is "nine billion, nine hundred seventy-six million, five hundred fifty-seven thousand, five hundred forty-six".