28114527840 has 192 divisors, whose sum is σ = 101301580800. Its totient is φ = 6420510720.

The previous prime is 28114527809. The next prime is 28114527851. The reversal of 28114527840 is 4872541182.

It is a super-2 number, since 2×28114527840² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 28114527792 and 28114527801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4697650 + ... + 4703630.

It is an arithmetic number, because the mean of its divisors is an integer number (527612400).

Almost surely, 2^28114527840 is an apocalyptic number.

28114527840 is a gapful number since it is divisible by the number (20) 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 28114527840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50650790400).

28114527840 is an abundant number, since it is smaller than the sum of its proper divisors (73187052960).

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

28114527840 is a wasteful number, since it uses less digits than its factorization.

28114527840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7405 (or 7397 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 28114527840 in words is "twenty-eight billion, one hundred fourteen million, five hundred twenty-seven thousand, eight hundred forty".