28513349798229 has 8 divisors (see below), whose sum is σ = 42241999701120. Its totient is φ = 19008899865468.

The previous prime is 28513349798203. The next prime is 28513349798233. The reversal of 28513349798229 is 92289794331582.

28513349798229 is a `hidden beast` number, since 2 + 8 + 5 + 1 + 33 + 497 + 9 + 82 + 29 = 666.

It is not a de Polignac number, because 28513349798229 - 2¹² = 28513349794133 is a prime.

It is a super-2 number, since 2×28513349798229² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28513349798249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528024996237 + ... + 528024996290.

It is an arithmetic number, because the mean of its divisors is an integer number (5280249962640).

Almost surely, 2^{28513349798229} is an apocalyptic number.

It is an amenable number.

28513349798229 is a deficient number, since it is larger than the sum of its proper divisors (13728649902891).

28513349798229 is a wasteful number, since it uses less digits than its factorization.

28513349798229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056049992536 (or 1056049992530 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 72.

The spelling of 28513349798229 in words is "twenty-eight trillion, five hundred thirteen billion, three hundred forty-nine million, seven hundred ninety-eight thousand, two hundred twenty-nine".