2773261020 has 48 divisors (see below), whose sum is σ = 7768605600. Its totient is φ = 739205376.

The previous prime is 2773261013. The next prime is 2773261061. The reversal of 2773261020 is 201623772.

2773261020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143874 + ... + 162006.

It is an arithmetic number, because the mean of its divisors is an integer number (161845950).

Almost surely, 2^2773261020 is an apocalyptic number.

2773261020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2773261020 is an abundant number, since it is smaller than the sum of its proper divisors (4995344580).

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

2773261020 is a wasteful number, since it uses less digits than its factorization.

2773261020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20694 (or 20692 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 2773261020 is about 52661.7605098804. The cubic root of 2773261020 is about 1404.9587792857.

Adding to 2773261020 its reverse (201623772), we get a palindrome (2974884792).

The spelling of 2773261020 in words is "two billion, seven hundred seventy-three million, two hundred sixty-one thousand, twenty".