1798825525440 has 448 divisors, whose sum is σ = 6004175708160. Its totient is φ = 455883816960.

The previous prime is 1798825525421. The next prime is 1798825525477. The reversal of 1798825525440 is 445255288971.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 217429144 + ... + 217437416.

It is an arithmetic number, because the mean of its divisors is an integer number (13402177920).

Almost surely, 2^{1798825525440} is an apocalyptic number.

1798825525440 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 1798825525440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3002087854080).

1798825525440 is an abundant number, since it is smaller than the sum of its proper divisors (4205350182720).

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

1798825525440 is a wasteful number, since it uses less digits than its factorization.

1798825525440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8480 (or 8470 counting only the distinct ones).

The product of its (nonzero) digits is 32256000, while the sum is 60.

The spelling of 1798825525440 in words is "one trillion, seven hundred ninety-eight billion, eight hundred twenty-five million, five hundred twenty-five thousand, four hundred forty".