1798708208640 has 704 divisors, whose sum is σ = 6809565265920. Its totient is φ = 396550471680.

The previous prime is 1798708208551. The next prime is 1798708208663. The reversal of 1798708208640 is 468028078971.

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, 1276584256 + ... + 1276585664.

Almost surely, 2^{1798708208640} is an apocalyptic number.

1798708208640 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 1798708208640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3404782632960).

1798708208640 is an abundant number, since it is smaller than the sum of its proper divisors (5010857057280).

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

1798708208640 is a wasteful number, since it uses less digits than its factorization.

1798708208640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858 (or 1840 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 1798708208640 in words is "one trillion, seven hundred ninety-eight billion, seven hundred eight million, two hundred eight thousand, six hundred forty".