28417685124 has 12 divisors (see below), whose sum is σ = 66307931984. Its totient is φ = 9472561704.

The previous prime is 28417685123. The next prime is 28417685147. The reversal of 28417685124 is 42158671482.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (28417685123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1184070202 + ... + 1184070225.

Almost surely, 2^28417685124 is an apocalyptic number.

It is an amenable number.

28417685124 is an abundant number, since it is smaller than the sum of its proper divisors (37890246860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28417685124 is a wasteful number, since it uses less digits than its factorization.

28417685124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368140434 (or 2368140432 counting only the distinct ones).

The product of its digits is 860160, while the sum is 48.

The spelling of 28417685124 in words is "twenty-eight billion, four hundred seventeen million, six hundred eighty-five thousand, one hundred twenty-four".