1249830985568 has 48 divisors (see below), whose sum is σ = 2776858050960. Its totient is φ = 548515161600.

The previous prime is 1249830985531. The next prime is 1249830985589. The reversal of 1249830985568 is 8655890389421.

It is a junction number, because it is equal to n+sod(n) for n = 1249830985498 and 1249830985507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61208003 + ... + 61228418.

It is an arithmetic number, because the mean of its divisors is an integer number (57851209395).

Almost surely, 2^{1249830985568} is an apocalyptic number.

It is an amenable number.

1249830985568 is an abundant number, since it is smaller than the sum of its proper divisors (1527027065392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249830985568 is a wasteful number, since it uses less digits than its factorization.

1249830985568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122436471 (or 122436463 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 68.

The spelling of 1249830985568 in words is "one trillion, two hundred forty-nine billion, eight hundred thirty million, nine hundred eighty-five thousand, five hundred sixty-eight".