71862105808 has 40 divisors (see below), whose sum is σ = 142709366016. Its totient is φ = 35034873600.

The previous prime is 71862105779. The next prime is 71862105839. The reversal of 71862105808 is 80850126817.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1165843 + ... + 1225933.

Almost surely, 2^71862105808 is an apocalyptic number.

It is an amenable number.

71862105808 is a deficient number, since it is larger than the sum of its proper divisors (70847260208).

71862105808 is a wasteful number, since it uses less digits than its factorization.

71862105808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61963 (or 61957 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 46.

The spelling of 71862105808 in words is "seventy-one billion, eight hundred sixty-two million, one hundred five thousand, eight hundred eight".