1983407854209 has 8 divisors (see below), whose sum is σ = 2645297036352. Its totient is φ = 1321895287440.

The previous prime is 1983407854189. The next prime is 1983407854229. The reversal of 1983407854209 is 9024587043891.

It is an interprime number because it is at equal distance from previous prime (1983407854189) and next prime (1983407854229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1983407854209 - 2⁵ = 1983407854177 is a prime.

It is a super-2 number, since 2×1983407854209² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1983407854229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94141554 + ... + 94162619.

It is an arithmetic number, because the mean of its divisors is an integer number (330662129544).

Almost surely, 2^{1983407854209} is an apocalyptic number.

It is an amenable number.

1983407854209 is a deficient number, since it is larger than the sum of its proper divisors (661889182143).

1983407854209 is a wasteful number, since it uses less digits than its factorization.

1983407854209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188307687.

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 1983407854209 in words is "one trillion, nine hundred eighty-three billion, four hundred seven million, eight hundred fifty-four thousand, two hundred nine".