71212673308 has 24 divisors (see below), whose sum is σ = 143368569344. Its totient is φ = 30317598000.

The previous prime is 71212673299. The next prime is 71212673309. The reversal of 71212673308 is 80337621217.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71212673309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8417328 + ... + 8425783.

Almost surely, 2^71212673308 is an apocalyptic number.

It is an amenable number.

71212673308 is an abundant number, since it is smaller than the sum of its proper divisors (72155896036).

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

71212673308 is a wasteful number, since it uses less digits than its factorization.

71212673308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16843273 (or 16843271 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 71212673308 in words is "seventy-one billion, two hundred twelve million, six hundred seventy-three thousand, three hundred eight".