1798004118249 has 6 divisors (see below), whose sum is σ = 2597117059706. Its totient is φ = 1198669412160.

The previous prime is 1798004118247. The next prime is 1798004118283. The reversal of 1798004118249 is 9428114008971.

1798004118249 is a `hidden beast` number, since 1 + 79 + 80 + 0 + 411 + 82 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1754618144400 + 43385973849 = 1324620^2 + 208293^2 .

It is not a de Polignac number, because 1798004118249 - 2¹ = 1798004118247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1798004118195 and 1798004118204.

It is not an unprimeable number, because it can be changed into a prime (1798004118247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99889117672 + ... + 99889117689.

Almost surely, 2^{1798004118249} is an apocalyptic number.

It is an amenable number.

1798004118249 is a deficient number, since it is larger than the sum of its proper divisors (799112941457).

1798004118249 is a wasteful number, since it uses less digits than its factorization.

1798004118249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199778235367 (or 199778235364 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 1798004118249 in words is "one trillion, seven hundred ninety-eight billion, four million, one hundred eighteen thousand, two hundred forty-nine".