28553204502143 has 4 divisors (see below), whose sum is σ = 28556155137480. Its totient is φ = 28550253866808.

The previous prime is 28553204502131. The next prime is 28553204502157. The reversal of 28553204502143 is 34120540235582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28553204502143 - 2¹⁴ = 28553204485759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28553204502094 and 28553204502103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28553204502103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1475303153 + ... + 1475322506.

It is an arithmetic number, because the mean of its divisors is an integer number (7139038784370).

Almost surely, 2^{28553204502143} is an apocalyptic number.

28553204502143 is a deficient number, since it is larger than the sum of its proper divisors (2950635337).

28553204502143 is an equidigital number, since it uses as much as digits as its factorization.

28553204502143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950635336.

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 28553204502143 in words is "twenty-eight trillion, five hundred fifty-three billion, two hundred four million, five hundred two thousand, one hundred forty-three".