1798393645764 has 27 divisors (see below), whose sum is σ = 4545959832687. Its totient is φ = 599461866504.

The previous prime is 1798393645759. The next prime is 1798393645861. The reversal of 1798393645764 is 4675463938971.

The square root of 1798393645764 is 1341042.

It is a perfect power (a square), and thus also a powerful number.

1798393645764 is a `hidden beast` number, since 1 + 7 + 9 + 83 + 9 + 36 + 457 + 64 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1798393645692 and 1798393645701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7934499 + ... + 8158005.

Almost surely, 2^{1798393645764} is an apocalyptic number.

1798393645764 is the 1341042-nd square number.

It is an amenable number.

1798393645764 is an abundant number, since it is smaller than the sum of its proper divisors (2747566186923).

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

1798393645764 is an frugal number, since it uses more digits than its factorization.

1798393645764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447024 (or 223512 counting only the distinct ones).

The product of its digits is 823011840, while the sum is 72.

The spelling of 1798393645764 in words is "one trillion, seven hundred ninety-eight billion, three hundred ninety-three million, six hundred forty-five thousand, seven hundred sixty-four".