2778253339 has 16 divisors (see below), whose sum is σ = 2987905536. Its totient is φ = 2574028800.

The previous prime is 2778253333. The next prime is 2778253343. The reversal of 2778253339 is 9333528772.

It is a cyclic number.

It is not a de Polignac number, because 2778253339 - 2⁷ = 2778253211 is a prime.

It is a super-3 number, since 3×2778253339³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2778253292 and 2778253301.

It is not an unprimeable number, because it can be changed into a prime (2778253333) 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, 310549 + ... + 319369.

It is an arithmetic number, because the mean of its divisors is an integer number (186744096).

Almost surely, 2^2778253339 is an apocalyptic number.

2778253339 is a deficient number, since it is larger than the sum of its proper divisors (209652197).

2778253339 is a wasteful number, since it uses less digits than its factorization.

2778253339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9126.

The product of its digits is 1905120, while the sum is 49.

The square root of 2778253339 is about 52709.1390462793. The cubic root of 2778253339 is about 1405.8013250325.

The spelling of 2778253339 in words is "two billion, seven hundred seventy-eight million, two hundred fifty-three thousand, three hundred thirty-nine".