2778228579 has 16 divisors (see below), whose sum is σ = 4274596352. Its totient is φ = 1572144768.

The previous prime is 2778228559. The next prime is 2778228601. The reversal of 2778228579 is 9758228772.

2778228579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2778228579 - 2¹⁶ = 2778163043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2778228559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640054 + ... + 644379.

It is an arithmetic number, because the mean of its divisors is an integer number (267162272).

Almost surely, 2^2778228579 is an apocalyptic number.

2778228579 is a deficient number, since it is larger than the sum of its proper divisors (1496367773).

2778228579 is a wasteful number, since it uses less digits than its factorization.

2778228579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284546.

The product of its digits is 7902720, while the sum is 57.

The square root of 2778228579 is about 52708.9041718759. The cubic root of 2778228579 is about 1405.7971488182.

The spelling of 2778228579 in words is "two billion, seven hundred seventy-eight million, two hundred twenty-eight thousand, five hundred seventy-nine".