71688447706 has 8 divisors (see below), whose sum is σ = 107534386080. Its totient is φ = 35843652348.

The previous prime is 71688447641. The next prime is 71688447707. The reversal of 71688447706 is 60774488617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (71688447707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106456 + ... + 393331.

It is an arithmetic number, because the mean of its divisors is an integer number (13441798260).

Almost surely, 2^71688447706 is an apocalyptic number.

71688447706 is a deficient number, since it is larger than the sum of its proper divisors (35845938374).

71688447706 is a wasteful number, since it uses less digits than its factorization.

71688447706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571508.

The product of its (nonzero) digits is 12644352, while the sum is 58.

The spelling of 71688447706 in words is "seventy-one billion, six hundred eighty-eight million, four hundred forty-seven thousand, seven hundred six".