28484312242684 has 24 divisors (see below), whose sum is σ = 49876836675680. Its totient is φ = 14233788301824.

The previous prime is 28484312242681. The next prime is 28484312242693. The reversal of 28484312242684 is 48624221348482.

It is a super-2 number, since 2×28484312242684² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28484312242681) 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, 155314912 + ... + 155498200.

Almost surely, 2^{28484312242684} is an apocalyptic number.

It is an amenable number.

28484312242684 is a deficient number, since it is larger than the sum of its proper divisors (21392524432996).

28484312242684 is a wasteful number, since it uses less digits than its factorization.

28484312242684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205909 (or 205907 counting only the distinct ones).

The product of its digits is 37748736, while the sum is 58.

The spelling of 28484312242684 in words is "twenty-eight trillion, four hundred eighty-four billion, three hundred twelve million, two hundred forty-two thousand, six hundred eighty-four".