1798040125440 has 1088 divisors, whose sum is σ = 7005860292480. Its totient is φ = 440301256704.

The previous prime is 1798040125429. The next prime is 1798040125507. The reversal of 1798040125440 is 445210408971.

1798040125440 is a `hidden beast` number, since 1 + 7 + 9 + 80 + 4 + 0 + 125 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 9316269984 + ... + 9316270176.

Almost surely, 2^{1798040125440} is an apocalyptic number.

1798040125440 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 1798040125440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3502930146240).

1798040125440 is an abundant number, since it is smaller than the sum of its proper divisors (5207820167040).

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

1798040125440 is an frugal number, since it uses more digits than its factorization.

1798040125440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 1798040125440 in words is "one trillion, seven hundred ninety-eight billion, forty million, one hundred twenty-five thousand, four hundred forty".