42630310693 has 2 divisors, whose sum is σ = 42630310694. Its totient is φ = 42630310692.

The previous prime is 42630310673. The next prime is 42630310747. The reversal of 42630310693 is 39601303624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27491961249 + 15138349444 = 165807^2 + 123038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42630310693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42630310643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21315155346 + 21315155347.

It is an arithmetic number, because the mean of its divisors is an integer number (21315155347).

Almost surely, 2^42630310693 is an apocalyptic number.

It is an amenable number.

42630310693 is a deficient number, since it is larger than the sum of its proper divisors (1).

42630310693 is an equidigital number, since it uses as much as digits as its factorization.

42630310693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 37.

The spelling of 42630310693 in words is "forty-two billion, six hundred thirty million, three hundred ten thousand, six hundred ninety-three".