9972151717688 has 32 divisors (see below), whose sum is σ = 19798574558400. Its totient is φ = 4692559107072.

The previous prime is 9972151717673. The next prime is 9972151717711. The reversal of 9972151717688 is 8867171512799.

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, 1250348 + ... + 4637636.

It is an arithmetic number, because the mean of its divisors is an integer number (618705454950).

Almost surely, 2^{9972151717688} is an apocalyptic number.

It is an amenable number.

9972151717688 is a deficient number, since it is larger than the sum of its proper divisors (9826422840712).

9972151717688 is a wasteful number, since it uses less digits than its factorization.

9972151717688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408959 (or 3408955 counting only the distinct ones).

The product of its digits is 106686720, while the sum is 71.

The spelling of 9972151717688 in words is "nine trillion, nine hundred seventy-two billion, one hundred fifty-one million, seven hundred seventeen thousand, six hundred eighty-eight".