8581894294452 has 12 divisors (see below), whose sum is σ = 20024420020416. Its totient is φ = 2860631431480.

The previous prime is 8581894294417. The next prime is 8581894294459. The reversal of 8581894294452 is 2544924981858.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8581894294452² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8581894294459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357578928924 + ... + 357578928947.

It is an arithmetic number, because the mean of its divisors is an integer number (1668701668368).

Almost surely, 2^{8581894294452} is an apocalyptic number.

It is an amenable number.

8581894294452 is an abundant number, since it is smaller than the sum of its proper divisors (11442525725964).

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

8581894294452 is a wasteful number, since it uses less digits than its factorization.

8581894294452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715157857878 (or 715157857876 counting only the distinct ones).

The product of its digits is 265420800, while the sum is 69.

The spelling of 8581894294452 in words is "eight trillion, five hundred eighty-one billion, eight hundred ninety-four million, two hundred ninety-four thousand, four hundred fifty-two".