28417738608 has 120 divisors (see below), whose sum is σ = 91272729600. Its totient is φ = 8085313152.

The previous prime is 28417738589. The next prime is 28417738621. The reversal of 28417738608 is 80683771482.

It is a happy number.

28417738608 is a `hidden beast` number, since 28 + 4 + 1 + 7 + 7 + 3 + 8 + 608 = 666.

It is a super-2 number, since 2×28417738608² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181933 + ... + 299891.

It is an arithmetic number, because the mean of its divisors is an integer number (760606080).

Almost surely, 2^28417738608 is an apocalyptic number.

28417738608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28417738608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45636364800).

28417738608 is an abundant number, since it is smaller than the sum of its proper divisors (62854990992).

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

28417738608 is a wasteful number, since it uses less digits than its factorization.

28417738608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118219 (or 118210 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 28417738608 in words is "twenty-eight billion, four hundred seventeen million, seven hundred thirty-eight thousand, six hundred eight".