71718287852 has 12 divisors (see below), whose sum is σ = 125536241880. Its totient is φ = 35850790176.

The previous prime is 71718287791. The next prime is 71718287863. The reversal of 71718287852 is 25878281717.

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, 2069102 + ... + 2103477.

It is an arithmetic number, because the mean of its divisors is an integer number (10461353490).

Almost surely, 2^71718287852 is an apocalyptic number.

It is an amenable number.

71718287852 is a deficient number, since it is larger than the sum of its proper divisors (53817954028).

71718287852 is a wasteful number, since it uses less digits than its factorization.

71718287852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176880 (or 4176878 counting only the distinct ones).

The product of its digits is 3512320, while the sum is 56.

The spelling of 71718287852 in words is "seventy-one billion, seven hundred eighteen million, two hundred eighty-seven thousand, eight hundred fifty-two".