28859449101 has 96 divisors (see below), whose sum is σ = 49098286080. Its totient is φ = 14966784000.

The previous prime is 28859449061. The next prime is 28859449109. The reversal of 28859449101 is 10194495882.

It is not a de Polignac number, because 28859449101 - 2⁶ = 28859449037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28859449109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31064605 + ... + 31065533.

It is an arithmetic number, because the mean of its divisors is an integer number (511440480).

Almost surely, 2^28859449101 is an apocalyptic number.

28859449101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28859449101 is a deficient number, since it is larger than the sum of its proper divisors (20238836979).

28859449101 is a wasteful number, since it uses less digits than its factorization.

28859449101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 28859449101 in words is "twenty-eight billion, eight hundred fifty-nine million, four hundred forty-nine thousand, one hundred one".