28237835229 has 4 divisors (see below), whose sum is σ = 37650446976. Its totient is φ = 18825223484.

The previous prime is 28237835221. The next prime is 28237835231. The reversal of 28237835229 is 92253873282.

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 28237835229 - 2³ = 28237835221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28237835221) 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, 4706305869 + ... + 4706305874.

It is an arithmetic number, because the mean of its divisors is an integer number (9412611744).

Almost surely, 2^28237835229 is an apocalyptic number.

It is an amenable number.

28237835229 is a deficient number, since it is larger than the sum of its proper divisors (9412611747).

28237835229 is an equidigital number, since it uses as much as digits as its factorization.

28237835229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9412611746.

The product of its digits is 2903040, while the sum is 51.

The spelling of 28237835229 in words is "twenty-eight billion, two hundred thirty-seven million, eight hundred thirty-five thousand, two hundred twenty-nine".