2718660720 has 80 divisors (see below), whose sum is σ = 8794294272. Its totient is φ = 693454080.

The previous prime is 2718660691. The next prime is 2718660727. The reversal of 2718660720 is 270668172.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2718660720² = 14782232220941836800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2718660727) 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 15 ways as a sum of consecutive naturals, for example, 240736 + ... + 251775.

Almost surely, 2^2718660720 is an apocalyptic number.

2718660720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2718660720 is an abundant number, since it is smaller than the sum of its proper divisors (6075633552).

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

2718660720 is a wasteful number, since it uses less digits than its factorization.

2718660720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492550 (or 492544 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 2718660720 is about 52140.7778998357. Note that the first 3 decimals coincide. The cubic root of 2718660720 is about 1395.6772652080.

The spelling of 2718660720 in words is "two billion, seven hundred eighteen million, six hundred sixty thousand, seven hundred twenty".