63081765871 has 2 divisors, whose sum is σ = 63081765872. Its totient is φ = 63081765870.

The previous prime is 63081765847. The next prime is 63081765881. The reversal of 63081765871 is 17856718036.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63081765871 - 2⁹ = 63081765359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63081765811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31540882935 + 31540882936.

It is an arithmetic number, because the mean of its divisors is an integer number (31540882936).

Almost surely, 2^63081765871 is an apocalyptic number.

63081765871 is a deficient number, since it is larger than the sum of its proper divisors (1).

63081765871 is an equidigital number, since it uses as much as digits as its factorization.

63081765871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 63081765871 in words is "sixty-three billion, eighty-one million, seven hundred sixty-five thousand, eight hundred seventy-one".