2186080464 has 80 divisors (see below), whose sum is σ = 5752076288. Its totient is φ = 715309056.

The previous prime is 2186080433. The next prime is 2186080499. The reversal of 2186080464 is 4640806812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589464 + ... + 593160.

Almost surely, 2^2186080464 is an apocalyptic number.

2186080464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2186080464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2876038144).

2186080464 is an abundant number, since it is smaller than the sum of its proper divisors (3565995824).

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

2186080464 is a wasteful number, since it uses less digits than its factorization.

2186080464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932 (or 3926 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 2186080464 is about 46755.5393937446. The cubic root of 2186080464 is about 1297.8426672803.

The spelling of 2186080464 in words is "two billion, one hundred eighty-six million, eighty thousand, four hundred sixty-four".