42651881263 has 2 divisors, whose sum is σ = 42651881264. Its totient is φ = 42651881262.

The previous prime is 42651881257. The next prime is 42651881303. The reversal of 42651881263 is 36218815624.

42651881263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42651881263 - 2¹⁷ = 42651750191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42651881203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21325940631 + 21325940632.

It is an arithmetic number, because the mean of its divisors is an integer number (21325940632).

Almost surely, 2^42651881263 is an apocalyptic number.

42651881263 is a deficient number, since it is larger than the sum of its proper divisors (1).

42651881263 is an equidigital number, since it uses as much as digits as its factorization.

42651881263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 46.

The spelling of 42651881263 in words is "forty-two billion, six hundred fifty-one million, eight hundred eighty-one thousand, two hundred sixty-three".