1798819593899 has 16 divisors (see below), whose sum is σ = 1840530107520. Its totient is φ = 1757254287360.

The previous prime is 1798819593881. The next prime is 1798819593917. The reversal of 1798819593899 is 9983959188971.

It is an interprime number because it is at equal distance from previous prime (1798819593881) and next prime (1798819593917).

It is a cyclic number.

It is not a de Polignac number, because 1798819593899 - 2³² = 1794524626603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1798819593899.

It is not an unprimeable number, because it can be changed into a prime (1798819593799) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 103413347 + ... + 103430739.

It is an arithmetic number, because the mean of its divisors is an integer number (115033131720).

Almost surely, 2^{1798819593899} is an apocalyptic number.

1798819593899 is a deficient number, since it is larger than the sum of its proper divisors (41710513621).

1798819593899 is a wasteful number, since it uses less digits than its factorization.

1798819593899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21430.

The product of its digits is 3174474240, while the sum is 86.

The spelling of 1798819593899 in words is "one trillion, seven hundred ninety-eight billion, eight hundred nineteen million, five hundred ninety-three thousand, eight hundred ninety-nine".