1831008487249 has 12 divisors (see below), whose sum is σ = 1914211077156. Its totient is φ = 1751278403072.

The previous prime is 1831008487223. The next prime is 1831008487267. The reversal of 1831008487249 is 9427848001381.

It can be written as a sum of positive squares in 2 ways, for example, as 865765116225 + 965243371024 = 930465^2 + 982468^2 .

It is not a de Polignac number, because 1831008487249 - 2¹⁹ = 1831007962961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1831008487249.

It is not an unprimeable number, because it can be changed into a prime (1831008487279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8073369 + ... + 8297065.

It is an arithmetic number, because the mean of its divisors is an integer number (159517589763).

Almost surely, 2^{1831008487249} is an apocalyptic number.

It is an amenable number.

1831008487249 is a deficient number, since it is larger than the sum of its proper divisors (83202589907).

1831008487249 is a wasteful number, since it uses less digits than its factorization.

1831008487249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239216 (or 239193 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 1831008487249 in words is "one trillion, eight hundred thirty-one billion, eight million, four hundred eighty-seven thousand, two hundred forty-nine".