2771720072 has 16 divisors (see below), whose sum is σ = 5669427600. Its totient is φ = 1259872720.

The previous prime is 2771720059. The next prime is 2771720093. The reversal of 2771720072 is 2700271772.

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, 15748322 + ... + 15748497.

It is an arithmetic number, because the mean of its divisors is an integer number (354339225).

Almost surely, 2^2771720072 is an apocalyptic number.

2771720072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2771720072 is an abundant number, since it is smaller than the sum of its proper divisors (2897707528).

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

2771720072 is a wasteful number, since it uses less digits than its factorization.

2771720072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31496836 (or 31496832 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 35.

The square root of 2771720072 is about 52647.1278608815. The cubic root of 2771720072 is about 1404.6985117386.

The spelling of 2771720072 in words is "two billion, seven hundred seventy-one million, seven hundred twenty thousand, seventy-two".