9427028255280 has 1920 divisors, whose sum is σ = 37010581171200. Its totient is φ = 2219565514752.

The previous prime is 9427028255209. The next prime is 9427028255387. The reversal of 9427028255280 is 825528207249.

9427028255280 is a `hidden beast` number, since 9 + 4 + 2 + 7 + 0 + 2 + 8 + 2 + 552 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 52664962231 + ... + 52664962409.

It is an arithmetic number, because the mean of its divisors is an integer number (19276344360).

Almost surely, 2^{9427028255280} is an apocalyptic number.

9427028255280 is a gapful number since it is divisible by the number (90) 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 9427028255280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18505290585600).

9427028255280 is an abundant number, since it is smaller than the sum of its proper divisors (27583552915920).

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

9427028255280 is a wasteful number, since it uses less digits than its factorization.

9427028255280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 9427028255280 in words is "nine trillion, four hundred twenty-seven billion, twenty-eight million, two hundred fifty-five thousand, two hundred eighty".