2782877328061 has 4 divisors (see below), whose sum is σ = 2791656121212. Its totient is φ = 2774098534912.

The previous prime is 2782877328043. The next prime is 2782877328089. The reversal of 2782877328061 is 1608237782872.

It is a happy number.

2782877328061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 357491584836 + 2425385743225 = 597906^2 + 1557365^2 .

It is a cyclic number.

It is not a de Polignac number, because 2782877328061 - 2¹⁷ = 2782877196989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2782877322061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4389396100 + ... + 4389396733.

It is an arithmetic number, because the mean of its divisors is an integer number (697914030303).

Almost surely, 2^{2782877328061} is an apocalyptic number.

It is an amenable number.

2782877328061 is a deficient number, since it is larger than the sum of its proper divisors (8778793151).

2782877328061 is an equidigital number, since it uses as much as digits as its factorization.

2782877328061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8778793150.

The product of its (nonzero) digits is 25288704, while the sum is 61.

The spelling of 2782877328061 in words is "two trillion, seven hundred eighty-two billion, eight hundred seventy-seven million, three hundred twenty-eight thousand, sixty-one".