28141159229 has 6 divisors (see below), whose sum is σ = 29112478590. Its totient is φ = 27169902200.

The previous prime is 28141159223. The next prime is 28141159231. The reversal of 28141159229 is 92295114182.

It can be written as a sum of positive squares in only one way, i.e., 24259620025 + 3881539204 = 155755^2 + 62302^2 .

It is a de Polignac number, because none of the positive numbers 2^k-28141159229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28141159229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28141159223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 887804 + ... + 918954.

It is an arithmetic number, because the mean of its divisors is an integer number (4852079765).

Almost surely, 2^28141159229 is an apocalyptic number.

28141159229 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

28141159229 is a deficient number, since it is larger than the sum of its proper divisors (971319361).

28141159229 is an frugal number, since it uses more digits than its factorization.

28141159229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62331 (or 31180 counting only the distinct ones).

The product of its digits is 103680, while the sum is 44.

The spelling of 28141159229 in words is "twenty-eight billion, one hundred forty-one million, one hundred fifty-nine thousand, two hundred twenty-nine".