28805511062338 has 4 divisors (see below), whose sum is σ = 43208266593510. Its totient is φ = 14402755531168.

The previous prime is 28805511062311. The next prime is 28805511062441. The reversal of 28805511062338 is 83326011550882.

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., 14992670529369 + 13812840532969 = 3872037^2 + 3716563^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7201377765583 + ... + 7201377765586.

Almost surely, 2^{28805511062338} is an apocalyptic number.

28805511062338 is a deficient number, since it is larger than the sum of its proper divisors (14402755531172).

28805511062338 is a wasteful number, since it uses less digits than its factorization.

28805511062338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14402755531171.

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 28805511062338 in words is "twenty-eight trillion, eight hundred five billion, five hundred eleven million, sixty-two thousand, three hundred thirty-eight".