41687638668 has 72 divisors (see below), whose sum is σ = 114584925728. Its totient is φ = 12702417408.

The previous prime is 41687638661. The next prime is 41687638763. The reversal of 41687638668 is 86683678614.

41687638668 is a `hidden beast` number, since 416 + 87 + 6 + 3 + 86 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (41687638661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384205 + ... + 480612.

Almost surely, 2^41687638668 is an apocalyptic number.

It is an amenable number.

41687638668 is an abundant number, since it is smaller than the sum of its proper divisors (72897287060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

41687638668 is a wasteful number, since it uses less digits than its factorization.

41687638668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864943 (or 864938 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 41687638668 in words is "forty-one billion, six hundred eighty-seven million, six hundred thirty-eight thousand, six hundred sixty-eight".