1247303370989 has 16 divisors (see below), whose sum is σ = 1346885030400. Its totient is φ = 1148241842496.

The previous prime is 1247303370967. The next prime is 1247303370997. The reversal of 1247303370989 is 9890733037421.

It is a cyclic number.

It is not a de Polignac number, because 1247303370989 - 2²⁸ = 1247034935533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247303378989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55914212 + ... + 55936514.

It is an arithmetic number, because the mean of its divisors is an integer number (84180314400).

Almost surely, 2^{1247303370989} is an apocalyptic number.

It is an amenable number.

1247303370989 is a deficient number, since it is larger than the sum of its proper divisors (99581659411).

1247303370989 is a wasteful number, since it uses less digits than its factorization.

1247303370989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33764.

The product of its (nonzero) digits is 6858432, while the sum is 56.

The spelling of 1247303370989 in words is "one trillion, two hundred forty-seven billion, three hundred three million, three hundred seventy thousand, nine hundred eighty-nine".