1983618098 has 54 divisors (see below), whose sum is σ = 3813796413. Its totient is φ = 770948640.

The previous prime is 1983618073. The next prime is 1983618223. The reversal of 1983618098 is 8908163891.

It can be written as a sum of positive squares in 2 ways, for example, as 1548186409 + 435431689 = 39347^2 + 20867^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=31493.

It is a Curzon number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 4849718 + ... + 4850126.

Almost surely, 2^1983618098 is an apocalyptic number.

1983618098 is a deficient number, since it is larger than the sum of its proper divisors (1830178315).

1983618098 is an equidigital number, since it uses as much as digits as its factorization.

1983618098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 53.

The square root of 1983618098 is about 44537.8277198159. The cubic root of 1983618098 is about 1256.4716308128.

The spelling of 1983618098 in words is "one billion, nine hundred eighty-three million, six hundred eighteen thousand, ninety-eight".