2736821680 has 20 divisors (see below), whose sum is σ = 6363110592. Its totient is φ = 1094728640.

The previous prime is 2736821663. The next prime is 2736821707. The reversal of 2736821680 is 861286372.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17105056 + ... + 17105215.

Almost surely, 2^2736821680 is an apocalyptic number.

2736821680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2736821680 is an abundant number, since it is smaller than the sum of its proper divisors (3626288912).

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

2736821680 is a wasteful number, since it uses less digits than its factorization.

2736821680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34210284 (or 34210278 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 2736821680 is about 52314.6411628714. The cubic root of 2736821680 is about 1398.7781311867.

The spelling of 2736821680 in words is "two billion, seven hundred thirty-six million, eight hundred twenty-one thousand, six hundred eighty".