8551438756 has 72 divisors (see below), whose sum is σ = 18104364096. Its totient is φ = 3461641920.

The previous prime is 8551438751. The next prime is 8551438769. The reversal of 8551438756 is 6578341558.

It is not an unprimeable number, because it can be changed into a prime (8551438751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4011811 + ... + 4013941.

Almost surely, 2^8551438756 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 8551438756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9052182048).

8551438756 is an abundant number, since it is smaller than the sum of its proper divisors (9552925340).

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

8551438756 is a wasteful number, since it uses less digits than its factorization.

8551438756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577 (or 2556 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 52.

The square root of 8551438756 is about 92473.9896187031. The cubic root of 8551438756 is about 2044.9360442135.

The spelling of 8551438756 in words is "eight billion, five hundred fifty-one million, four hundred thirty-eight thousand, seven hundred fifty-six".