28642010041 has 4 divisors (see below), whose sum is σ = 28642774500. Its totient is φ = 28641245584.

The previous prime is 28642010027. The next prime is 28642010053. The reversal of 28642010041 is 14001024682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14001024682 = 2 ⋅7000512341.

It can be written as a sum of positive squares in 2 ways, for example, as 10584294400 + 18057715641 = 102880^2 + 134379^2 .

It is a cyclic number.

It is not a de Polignac number, because 28642010041 - 2¹¹ = 28642007993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28642009991 and 28642010009.

It is not an unprimeable number, because it can be changed into a prime (28642010011) by changing a digit.

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, 322966 + ... + 401983.

It is an arithmetic number, because the mean of its divisors is an integer number (7160693625).

Almost surely, 2^28642010041 is an apocalyptic number.

It is an amenable number.

28642010041 is a deficient number, since it is larger than the sum of its proper divisors (764459).

28642010041 is an equidigital number, since it uses as much as digits as its factorization.

28642010041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764458.

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 28642010041 in words is "twenty-eight billion, six hundred forty-two million, ten thousand, forty-one".