42630666047 has 2 divisors, whose sum is σ = 42630666048. Its totient is φ = 42630666046.

The previous prime is 42630666011. The next prime is 42630666049. The reversal of 42630666047 is 74066603624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42630666047 - 2¹⁰ = 42630665023 is a prime.

It is a super-2 number, since 2×42630666047² (a number of 22 digits) contains 22 as substring.

Together with 42630666049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42630665989 and 42630666007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42630666049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21315333023 + 21315333024.

It is an arithmetic number, because the mean of its divisors is an integer number (21315333024).

Almost surely, 2^42630666047 is an apocalyptic number.

42630666047 is a deficient number, since it is larger than the sum of its proper divisors (1).

42630666047 is an equidigital number, since it uses as much as digits as its factorization.

42630666047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 42630666047 in words is "forty-two billion, six hundred thirty million, six hundred sixty-six thousand, forty-seven".