28269850153 has 4 divisors (see below), whose sum is σ = 28277191108. Its totient is φ = 28262509200.

The previous prime is 28269850139. The next prime is 28269850199. The reversal of 28269850153 is 35105896282.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27083943184 + 1185906969 = 164572^2 + 34437^2 .

It is a cyclic number.

It is not a de Polignac number, because 28269850153 - 2²⁵ = 28236295721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28269850097 and 28269850106.

It is not an unprimeable number, because it can be changed into a prime (28269850123) 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, 3664698 + ... + 3672403.

It is an arithmetic number, because the mean of its divisors is an integer number (7069297777).

Almost surely, 2^28269850153 is an apocalyptic number.

It is an amenable number.

28269850153 is a deficient number, since it is larger than the sum of its proper divisors (7340955).

28269850153 is an equidigital number, since it uses as much as digits as its factorization.

28269850153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7340954.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 28269850153 in words is "twenty-eight billion, two hundred sixty-nine million, eight hundred fifty thousand, one hundred fifty-three".