28311105258 has 24 divisors (see below), whose sum is σ = 63612607968. Its totient is φ = 9437034924.

The previous prime is 28311105257. The next prime is 28311105281. The reversal of 28311105258 is 85250111382.

It is not an unprimeable number, because it can be changed into a prime (28311105257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29126166 + ... + 29127137.

It is an arithmetic number, because the mean of its divisors is an integer number (2650525332).

Almost surely, 2^28311105258 is an apocalyptic number.

28311105258 is an abundant number, since it is smaller than the sum of its proper divisors (35301502710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28311105258 is an equidigital number, since it uses as much as digits as its factorization.

28311105258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58253320 (or 58253308 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The spelling of 28311105258 in words is "twenty-eight billion, three hundred eleven million, one hundred five thousand, two hundred fifty-eight".