2721715136 has 112 divisors (see below), whose sum is σ = 6415137792. Its totient is φ = 1121433600.

The previous prime is 2721715127. The next prime is 2721715187. The reversal of 2721715136 is 6315171272.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 2721715096 and 2721715105.

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, 1303085 + ... + 1305171.

It is an arithmetic number, because the mean of its divisors is an integer number (57278016).

Almost surely, 2^2721715136 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 2721715136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3207568896).

2721715136 is an abundant number, since it is smaller than the sum of its proper divisors (3693422656).

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

2721715136 is a wasteful number, since it uses less digits than its factorization.

2721715136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218 (or 2208 counting only the distinct ones).

The product of its digits is 17640, while the sum is 35.

The square root of 2721715136 is about 52170.0597661149. The cubic root of 2721715136 is about 1396.1997508383.

The spelling of 2721715136 in words is "two billion, seven hundred twenty-one million, seven hundred fifteen thousand, one hundred thirty-six".