2721670020 has 72 divisors (see below), whose sum is σ = 8260027776. Its totient is φ = 725401152.

The previous prime is 2721669983. The next prime is 2721670033. The reversal of 2721670020 is 200761272.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 599479 + ... + 604001.

It is an arithmetic number, because the mean of its divisors is an integer number (114722608).

Almost surely, 2^2721670020 is an apocalyptic number.

2721670020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2721670020 is an abundant number, since it is smaller than the sum of its proper divisors (5538357756).

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

2721670020 is a wasteful number, since it uses less digits than its factorization.

2721670020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7881 (or 7876 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 2721670020 is about 52169.6273707221. The cubic root of 2721670020 is about 1396.1920361813.

The spelling of 2721670020 in words is "two billion, seven hundred twenty-one million, six hundred seventy thousand, twenty".