1988090019853 has 16 divisors (see below), whose sum is σ = 2303689268736. Its totient is φ = 1680396727680.

The previous prime is 1988090019829. The next prime is 1988090019871. The reversal of 1988090019853 is 3589100908891.

It is a cyclic number.

It is not a de Polignac number, because 1988090019853 - 2⁹ = 1988090019341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1988090019791 and 1988090019800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988090019893) 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, 2178300 + ... + 2953162.

It is an arithmetic number, because the mean of its divisors is an integer number (143980579296).

Almost surely, 2^{1988090019853} is an apocalyptic number.

It is an amenable number.

1988090019853 is a deficient number, since it is larger than the sum of its proper divisors (315599248883).

1988090019853 is an equidigital number, since it uses as much as digits as its factorization.

1988090019853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779964.

The product of its (nonzero) digits is 5598720, while the sum is 61.

The spelling of 1988090019853 in words is "one trillion, nine hundred eighty-eight billion, ninety million, nineteen thousand, eight hundred fifty-three".