1028274725280 has 384 divisors, whose sum is σ = 3581510639616. Its totient is φ = 245912371200.

The previous prime is 1028274725209. The next prime is 1028274725351. The reversal of 1028274725280 is 825274728201.

It is an interprime number because it is at equal distance from previous prime (1028274725209) and next prime (1028274725351).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147377152 + ... + 147384128.

It is an arithmetic number, because the mean of its divisors is an integer number (9326850624).

Almost surely, 2^{1028274725280} is an apocalyptic number.

1028274725280 is a gapful number since it is divisible by the number (10) 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 1028274725280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790755319808).

1028274725280 is an abundant number, since it is smaller than the sum of its proper divisors (2553235914336).

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

1028274725280 is a wasteful number, since it uses less digits than its factorization.

1028274725280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380 (or 7372 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 48.

The spelling of 1028274725280 in words is "one trillion, twenty-eight billion, two hundred seventy-four million, seven hundred twenty-five thousand, two hundred eighty".