71668805748 has 12 divisors (see below), whose sum is σ = 167227213440. Its totient is φ = 23889601912.

The previous prime is 71668805737. The next prime is 71668805777. The reversal of 71668805748 is 84750886617.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 71668805691 and 71668805700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2986200228 + ... + 2986200251.

It is an arithmetic number, because the mean of its divisors is an integer number (13935601120).

Almost surely, 2^71668805748 is an apocalyptic number.

It is an amenable number.

71668805748 is an abundant number, since it is smaller than the sum of its proper divisors (95558407692).

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

71668805748 is a wasteful number, since it uses less digits than its factorization.

71668805748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5972400486 (or 5972400484 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 60.

The spelling of 71668805748 in words is "seventy-one billion, six hundred sixty-eight million, eight hundred five thousand, seven hundred forty-eight".