2777428120852 has 108 divisors (see below), whose sum is σ = 6580358732052. Its totient is φ = 1018460889600.

The previous prime is 2777428120787. The next prime is 2777428120853. The reversal of 2777428120852 is 2580218247772.

2777428120852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2190678248836 + 586749872016 = 1480094^2 + 765996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2777428120793 and 2777428120802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2777428120853) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3041299 + ... + 3847642.

It is an arithmetic number, because the mean of its divisors is an integer number (60929247519).

Almost surely, 2^{2777428120852} is an apocalyptic number.

2777428120852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2777428120852 is an abundant number, since it is smaller than the sum of its proper divisors (3802930611200).

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

2777428120852 is a wasteful number, since it uses less digits than its factorization.

2777428120852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888998 (or 6888978 counting only the distinct ones).

The product of its (nonzero) digits is 7024640, while the sum is 55.

The spelling of 2777428120852 in words is "two trillion, seven hundred seventy-seven billion, four hundred twenty-eight million, one hundred twenty thousand, eight hundred fifty-two".