28858443013 has 4 divisors (see below), whose sum is σ = 29223739840. Its totient is φ = 28493146188.

The previous prime is 28858442993. The next prime is 28858443017. The reversal of 28858443013 is 31034485882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28858443013 - 2⁵ = 28858442981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28858443017) 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, 182648295 + ... + 182648452.

It is an arithmetic number, because the mean of its divisors is an integer number (7305934960).

Almost surely, 2^28858443013 is an apocalyptic number.

It is an amenable number.

28858443013 is a deficient number, since it is larger than the sum of its proper divisors (365296827).

28858443013 is an equidigital number, since it uses as much as digits as its factorization.

28858443013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365296826.

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 28858443013 in words is "twenty-eight billion, eight hundred fifty-eight million, four hundred forty-three thousand, thirteen".