1983850451059 has 2 divisors, whose sum is σ = 1983850451060. Its totient is φ = 1983850451058.

The previous prime is 1983850451053. The next prime is 1983850451101. The reversal of 1983850451059 is 9501540583891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1983850451059 - 2¹⁷ = 1983850319987 is a prime.

It is a super-2 number, since 2×1983850451059² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1983850450994 and 1983850451012.

It is not a weakly prime, because it can be changed into another prime (1983850451053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991925225529 + 991925225530.

It is an arithmetic number, because the mean of its divisors is an integer number (991925225530).

Almost surely, 2^{1983850451059} is an apocalyptic number.

1983850451059 is a deficient number, since it is larger than the sum of its proper divisors (1).

1983850451059 is an equidigital number, since it uses as much as digits as its factorization.

1983850451059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776000, while the sum is 58.

The spelling of 1983850451059 in words is "one trillion, nine hundred eighty-three billion, eight hundred fifty million, four hundred fifty-one thousand, fifty-nine".