2545768609828 has 6 divisors (see below), whose sum is σ = 4455095067206. Its totient is φ = 1272884304912.

The previous prime is 2545768609819. The next prime is 2545768609843. The reversal of 2545768609828 is 8289068675452.

It can be written as a sum of positive squares in only one way, i.e., 2512630776384 + 33137833444 = 1585128^2 + 182038^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318221076225 + ... + 318221076232.

Almost surely, 2^{2545768609828} is an apocalyptic number.

It is an amenable number.

2545768609828 is a deficient number, since it is larger than the sum of its proper divisors (1909326457378).

2545768609828 is a wasteful number, since it uses less digits than its factorization.

2545768609828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636442152461 (or 636442152459 counting only the distinct ones).

The product of its (nonzero) digits is 464486400, while the sum is 70.

The spelling of 2545768609828 in words is "two trillion, five hundred forty-five billion, seven hundred sixty-eight million, six hundred nine thousand, eight hundred twenty-eight".