2772641020 has 12 divisors (see below), whose sum is σ = 5822546184. Its totient is φ = 1109056400.

The previous prime is 2772641009. The next prime is 2772641033. The reversal of 2772641020 is 201462772.

It is a congruent number.

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, 69316006 + ... + 69316045.

It is an arithmetic number, because the mean of its divisors is an integer number (485212182).

Almost surely, 2^2772641020 is an apocalyptic number.

2772641020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2772641020 is an abundant number, since it is smaller than the sum of its proper divisors (3049905164).

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

2772641020 is a wasteful number, since it uses less digits than its factorization.

2772641020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138632060 (or 138632058 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 2772641020 is about 52655.8735565179. The cubic root of 2772641020 is about 1404.8540723049.

The spelling of 2772641020 in words is "two billion, seven hundred seventy-two million, six hundred forty-one thousand, twenty".