63830871668 has 12 divisors (see below), whose sum is σ = 114301793760. Its totient is φ = 31173216312.

The previous prime is 63830871661. The next prime is 63830871673. The reversal of 63830871668 is 86617803836.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63830871661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185554688 + ... + 185555031.

It is an arithmetic number, because the mean of its divisors is an integer number (9525149480).

Almost surely, 2^63830871668 is an apocalyptic number.

It is an amenable number.

63830871668 is a deficient number, since it is larger than the sum of its proper divisors (50470922092).

63830871668 is a wasteful number, since it uses less digits than its factorization.

63830871668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371109766 (or 371109764 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 63830871668 in words is "sixty-three billion, eight hundred thirty million, eight hundred seventy-one thousand, six hundred sixty-eight".