71730140312 has 32 divisors (see below), whose sum is σ = 134933526000. Its totient is φ = 35747952000.

The previous prime is 71730140291. The next prime is 71730140341. The reversal of 71730140312 is 21304103717.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11754062 + ... + 11760162.

Almost surely, 2^71730140312 is an apocalyptic number.

It is an amenable number.

71730140312 is a deficient number, since it is larger than the sum of its proper divisors (63203385688).

71730140312 is a wasteful number, since it uses less digits than its factorization.

71730140312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10667 (or 10663 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The spelling of 71730140312 in words is "seventy-one billion, seven hundred thirty million, one hundred forty thousand, three hundred twelve".