3804487281869 has 2 divisors, whose sum is σ = 3804487281870. Its totient is φ = 3804487281868.

The previous prime is 3804487281853. The next prime is 3804487281871. The reversal of 3804487281869 is 9681827844083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2168167900900 + 1636319380969 = 1472470^2 + 1279187^2 .

It is a cyclic number.

It is not a de Polignac number, because 3804487281869 - 2⁴ = 3804487281853 is a prime.

It is a super-2 number, since 2×3804487281869² (a number of 26 digits) contains 22 as substring.

Together with 3804487281871, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3804487281799 and 3804487281808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3804487281899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1902243640934 + 1902243640935.

It is an arithmetic number, because the mean of its divisors is an integer number (1902243640935).

Almost surely, 2^{3804487281869} is an apocalyptic number.

It is an amenable number.

3804487281869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3804487281869 is an equidigital number, since it uses as much as digits as its factorization.

3804487281869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148635648, while the sum is 68.

The spelling of 3804487281869 in words is "three trillion, eight hundred four billion, four hundred eighty-seven million, two hundred eighty-one thousand, eight hundred sixty-nine".