28127085531480 has 384 divisors, whose sum is σ = 99466550164800. Its totient is φ = 6852046196736.

The previous prime is 28127085531449. The next prime is 28127085531491. The reversal of 28127085531480 is 8413558072182.

It is a happy number.

28127085531480 is a `hidden beast` number, since 2 + 8 + 1 + 2 + 7 + 0 + 8 + 553 + 1 + 4 + 80 = 666.

It is a super-3 number, since 3×28127085531480³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 206146642 + ... + 206283038.

Almost surely, 2^{28127085531480} is an apocalyptic number.

28127085531480 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 28127085531480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49733275082400).

28127085531480 is an abundant number, since it is smaller than the sum of its proper divisors (71339464633320).

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

28127085531480 is a wasteful number, since it uses less digits than its factorization.

28127085531480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136883 (or 136876 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 28127085531480 in words is "twenty-eight trillion, one hundred twenty-seven billion, eighty-five million, five hundred thirty-one thousand, four hundred eighty".