8642086800464 has 60 divisors (see below), whose sum is σ = 18850135803156. Its totient is φ = 3815235595776.

The previous prime is 8642086800407. The next prime is 8642086800491. The reversal of 8642086800464 is 4640086802468.

It can be written as a sum of positive squares in 2 ways, for example, as 4135772995600 + 4506313804864 = 2033660^2 + 2122808^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39160757 + ... + 39380820.

Almost surely, 2^{8642086800464} is an apocalyptic number.

It is an amenable number.

8642086800464 is an abundant number, since it is smaller than the sum of its proper divisors (10208049002692).

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

8642086800464 is a wasteful number, since it uses less digits than its factorization.

8642086800464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78541644 (or 78541615 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 56.

The spelling of 8642086800464 in words is "eight trillion, six hundred forty-two billion, eighty-six million, eight hundred thousand, four hundred sixty-four".