8543976738 has 48 divisors (see below), whose sum is σ = 18902513280. Its totient is φ = 2572558560.

The previous prime is 8543976737. The next prime is 8543976761. The reversal of 8543976738 is 8376793458.

It is not an unprimeable number, because it can be changed into a prime (8543976737) 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, 76503 + ... + 151461.

It is an arithmetic number, because the mean of its divisors is an integer number (393802360).

Almost surely, 2^8543976738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8543976738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9451256640).

8543976738 is an abundant number, since it is smaller than the sum of its proper divisors (10358536542).

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

8543976738 is a wasteful number, since it uses less digits than its factorization.

8543976738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75143 (or 75132 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 60.

The square root of 8543976738 is about 92433.6342355963. The cubic root of 8543976738 is about 2044.3410647949.

The spelling of 8543976738 in words is "eight billion, five hundred forty-three million, nine hundred seventy-six thousand, seven hundred thirty-eight".