2143993609898 has 16 divisors (see below), whose sum is σ = 3868860649920. Its totient is φ = 870493646016.

The previous prime is 2143993609871. The next prime is 2143993609909. The reversal of 2143993609898 is 8989063993412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4030062911 + ... + 4030063442.

It is an arithmetic number, because the mean of its divisors is an integer number (241803790620).

Almost surely, 2^{2143993609898} is an apocalyptic number.

2143993609898 is a deficient number, since it is larger than the sum of its proper divisors (1724867040022).

2143993609898 is a wasteful number, since it uses less digits than its factorization.

2143993609898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060126381.

The product of its (nonzero) digits is 181398528, while the sum is 71.

The spelling of 2143993609898 in words is "two trillion, one hundred forty-three billion, nine hundred ninety-three million, six hundred nine thousand, eight hundred ninety-eight".