42630711251 has 2 divisors, whose sum is σ = 42630711252. Its totient is φ = 42630711250.

The previous prime is 42630711239. The next prime is 42630711289. The reversal of 42630711251 is 15211703624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42630711251 - 2⁶ = 42630711187 is a prime.

It is a super-2 number, since 2×42630711251² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42630711451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21315355625 + 21315355626.

It is an arithmetic number, because the mean of its divisors is an integer number (21315355626).

Almost surely, 2^42630711251 is an apocalyptic number.

42630711251 is a deficient number, since it is larger than the sum of its proper divisors (1).

42630711251 is an equidigital number, since it uses as much as digits as its factorization.

42630711251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 42630711251 in words is "forty-two billion, six hundred thirty million, seven hundred eleven thousand, two hundred fifty-one".