28052663207546 has 8 divisors (see below), whose sum is σ = 42203858298420. Its totient is φ = 13984710441408.

The previous prime is 28052663207509. The next prime is 28052663207581. The reversal of 28052663207546 is 64570236625082.

It can be written as a sum of positive squares in 2 ways, for example, as 26184354214225 + 1868308993321 = 5117065^2 + 1366861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28052663207491 and 28052663207500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20810580341 + ... + 20810581688.

Almost surely, 2^{28052663207546} is an apocalyptic number.

28052663207546 is a deficient number, since it is larger than the sum of its proper divisors (14151195090874).

28052663207546 is a wasteful number, since it uses less digits than its factorization.

28052663207546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41621162368.

The product of its (nonzero) digits is 29030400, while the sum is 56.

The spelling of 28052663207546 in words is "twenty-eight trillion, fifty-two billion, six hundred sixty-three million, two hundred seven thousand, five hundred forty-six".