8891145536 has 56 divisors (see below), whose sum is σ = 21714927360. Its totient is φ = 3517373952.

The previous prime is 8891145533. The next prime is 8891145541. The reversal of 8891145536 is 6355411988.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8891145533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757496 + ... + 769143.

It is an arithmetic number, because the mean of its divisors is an integer number (387766560).

Almost surely, 2^8891145536 is an apocalyptic number.

It is an amenable number.

8891145536 is an abundant number, since it is smaller than the sum of its proper divisors (12823781824).

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

8891145536 is a wasteful number, since it uses less digits than its factorization.

8891145536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526671 (or 1526661 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 50.

The square root of 8891145536 is about 94292.8710772983. The cubic root of 8891145536 is about 2071.6636206516.

The spelling of 8891145536 in words is "eight billion, eight hundred ninety-one million, one hundred forty-five thousand, five hundred thirty-six".