626263755349 has 2 divisors, whose sum is σ = 626263755350. Its totient is φ = 626263755348.

The previous prime is 626263755331. The next prime is 626263755379. The reversal of 626263755349 is 943557362626.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 576298094449 + 49965660900 = 759143^2 + 223530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-626263755349 is a prime.

It is a super-2 number, since 2×626263755349² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 626263755293 and 626263755302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (626263755379) 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 as a sum of consecutive naturals, namely, 313131877674 + 313131877675.

It is an arithmetic number, because the mean of its divisors is an integer number (313131877675).

Almost surely, 2^626263755349 is an apocalyptic number.

It is an amenable number.

626263755349 is a deficient number, since it is larger than the sum of its proper divisors (1).

626263755349 is an equidigital number, since it uses as much as digits as its factorization.

626263755349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48988800, while the sum is 58.

The spelling of 626263755349 in words is "six hundred twenty-six billion, two hundred sixty-three million, seven hundred fifty-five thousand, three hundred forty-nine".