28113703488 has 672 divisors, whose sum is σ = 97136492544. Its totient is φ = 7691894784.

The previous prime is 28113703463. The next prime is 28113703489. The reversal of 28113703488 is 88430731182.

It is a super-2 number, since 2×28113703488² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28113703489) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 221367681 + ... + 221367807.

It is an arithmetic number, because the mean of its divisors is an integer number (144548352).

Almost surely, 2^28113703488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28113703488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48568246272).

28113703488 is an abundant number, since it is smaller than the sum of its proper divisors (69022789056).

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

28113703488 is a wasteful number, since it uses less digits than its factorization.

28113703488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 28113703488 in words is "twenty-eight billion, one hundred thirteen million, seven hundred three thousand, four hundred eighty-eight".