1799018605440 has 1920 divisors, whose sum is σ = 8017236817920. Its totient is φ = 376144404480.

The previous prime is 1799018605429. The next prime is 1799018605457. The reversal of 1799018605440 is 445068109971.

1799018605440 is a `hidden beast` number, since 1 + 7 + 9 + 90 + 1 + 8 + 6 + 0 + 544 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 4060989859 + ... + 4060990301.

It is an arithmetic number, because the mean of its divisors is an integer number (4175644176).

Almost surely, 2^{1799018605440} is an apocalyptic number.

1799018605440 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 1799018605440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4008618408960).

1799018605440 is an abundant number, since it is smaller than the sum of its proper divisors (6218218212480).

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

1799018605440 is a wasteful number, since it uses less digits than its factorization.

1799018605440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 1799018605440 in words is "one trillion, seven hundred ninety-nine billion, eighteen million, six hundred five thousand, four hundred forty".