630746136207349 has 2 divisors, whose sum is σ = 630746136207350. Its totient is φ = 630746136207348.

The previous prime is 630746136207331. The next prime is 630746136207361. The reversal of 630746136207349 is 943702631647036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628064998500625 + 2681137706724 = 25061225^2 + 1637418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630746136207349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630746136207329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315373068103674 + 315373068103675.

It is an arithmetic number, because the mean of its divisors is an integer number (315373068103675).

Almost surely, 2^{630746136207349} is an apocalyptic number.

It is an amenable number.

630746136207349 is a deficient number, since it is larger than the sum of its proper divisors (1).

630746136207349 is an equidigital number, since it uses as much as digits as its factorization.

630746136207349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82301184, while the sum is 61.

The spelling of 630746136207349 in words is "six hundred thirty trillion, seven hundred forty-six billion, one hundred thirty-six million, two hundred seven thousand, three hundred forty-nine".