123871718704 has 40 divisors (see below), whose sum is σ = 252485514000. Its totient is φ = 58786565376.

The previous prime is 123871718689. The next prime is 123871718779. The reversal of 123871718704 is 407817178321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2235039 + ... + 2289790.

It is an arithmetic number, because the mean of its divisors is an integer number (6312137850).

Almost surely, 2^123871718704 is an apocalyptic number.

It is an amenable number.

123871718704 is an abundant number, since it is smaller than the sum of its proper divisors (128613795296).

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

123871718704 is a wasteful number, since it uses less digits than its factorization.

123871718704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524925 (or 4524919 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 49.

The spelling of 123871718704 in words is "one hundred twenty-three billion, eight hundred seventy-one million, seven hundred eighteen thousand, seven hundred four".