5257751266789 has 6 divisors (see below), whose sum is σ = 6116159636934. Its totient is φ = 4506643942920.

The previous prime is 5257751266787. The next prime is 5257751266837. The reversal of 5257751266789 is 9876621577525.

It can be written as a sum of positive squares in only one way, i.e., 3023279382564 + 2234471884225 = 1738758^2 + 1494815^2 .

It is not a de Polignac number, because 5257751266789 - 2¹ = 5257751266787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257751266787) 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, 53650523082 + ... + 53650523179.

It is an arithmetic number, because the mean of its divisors is an integer number (1019359939489).

Almost surely, 2^{5257751266789} is an apocalyptic number.

It is an amenable number.

5257751266789 is a deficient number, since it is larger than the sum of its proper divisors (858408370145).

5257751266789 is a wasteful number, since it uses less digits than its factorization.

5257751266789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107301046275 (or 107301046268 counting only the distinct ones).

The product of its digits is 444528000, while the sum is 70.

The spelling of 5257751266789 in words is "five trillion, two hundred fifty-seven billion, seven hundred fifty-one million, two hundred sixty-six thousand, seven hundred eighty-nine".