28330013234 has 4 divisors (see below), whose sum is σ = 42495019854. Its totient is φ = 14165006616.

The previous prime is 28330013189. The next prime is 28330013237. The reversal of 28330013234 is 43231003382.

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

It can be written as a sum of positive squares in only one way, i.e., 21448481209 + 6881532025 = 146453^2 + 82955^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28330013197 and 28330013206.

It is not an unprimeable number, because it can be changed into a prime (28330013237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7082503307 + ... + 7082503310.

Almost surely, 2^28330013234 is an apocalyptic number.

28330013234 is a deficient number, since it is larger than the sum of its proper divisors (14165006620).

28330013234 is a wasteful number, since it uses less digits than its factorization.

28330013234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14165006619.

The product of its (nonzero) digits is 10368, while the sum is 29.

The spelling of 28330013234 in words is "twenty-eight billion, three hundred thirty million, thirteen thousand, two hundred thirty-four".