2778828652 has 12 divisors (see below), whose sum is σ = 4905985896. Its totient is φ = 1377118400.

The previous prime is 2778828643. The next prime is 2778828671. The reversal of 2778828652 is 2568288772.

2778828652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2778828652² = 15443777354352274208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2778828593 and 2778828602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3073474 + ... + 3074377.

It is an arithmetic number, because the mean of its divisors is an integer number (408832158).

Almost surely, 2^2778828652 is an apocalyptic number.

It is an amenable number.

2778828652 is a deficient number, since it is larger than the sum of its proper divisors (2127157244).

2778828652 is a wasteful number, since it uses less digits than its factorization.

2778828652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6147968 (or 6147966 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 55.

The square root of 2778828652 is about 52714.5961949819. The cubic root of 2778828652 is about 1405.8983548158.

The spelling of 2778828652 in words is "two billion, seven hundred seventy-eight million, eight hundred twenty-eight thousand, six hundred fifty-two".