28052498178180 has 432 divisors, whose sum is σ = 100108439134704. Its totient is φ = 6339652945920.

The previous prime is 28052498178179. The next prime is 28052498178193. The reversal of 28052498178180 is 8187189425082.

28052498178180 is a `hidden beast` number, since 2 + 8 + 0 + 52 + 498 + 17 + 8 + 1 + 80 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 552144108096 + 27500354070084 = 743064^2 + 5244078^2 .

It is a super-2 number, since 2×28052498178180² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 276129874 + ... + 276231446.

It is an arithmetic number, because the mean of its divisors is an integer number (231732497997).

Almost surely, 2^{28052498178180} is an apocalyptic number.

28052498178180 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 28052498178180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50054219567352).

28052498178180 is an abundant number, since it is smaller than the sum of its proper divisors (72055940956524).

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

28052498178180 is a wasteful number, since it uses less digits than its factorization.

28052498178180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101956 (or 101944 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 63.

The spelling of 28052498178180 in words is "twenty-eight trillion, fifty-two billion, four hundred ninety-eight million, one hundred seventy-eight thousand, one hundred eighty".