2778164552 has 8 divisors (see below), whose sum is σ = 5209058550. Its totient is φ = 1389082272.

The previous prime is 2778164509. The next prime is 2778164563. The reversal of 2778164552 is 2554618772.

2778164552 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 only one way, i.e., 2636411716 + 141752836 = 51346^2 + 11906^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2778164497 and 2778164506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173635277 + ... + 173635292.

Almost surely, 2^2778164552 is an apocalyptic number.

It is an amenable number.

2778164552 is a deficient number, since it is larger than the sum of its proper divisors (2430893998).

2778164552 is a wasteful number, since it uses less digits than its factorization.

2778164552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347270575 (or 347270571 counting only the distinct ones).

The product of its digits is 940800, while the sum is 47.

The square root of 2778164552 is about 52708.2968042034. The cubic root of 2778164552 is about 1405.7863494110.

The spelling of 2778164552 in words is "two billion, seven hundred seventy-eight million, one hundred sixty-four thousand, five hundred fifty-two".