9687939391292 has 24 divisors (see below), whose sum is σ = 16971008026896. Its totient is φ = 4839080347008.

The previous prime is 9687939391283. The next prime is 9687939391313. The reversal of 9687939391292 is 2921939397869.

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, 190430843 + ... + 190481709.

It is an arithmetic number, because the mean of its divisors is an integer number (707125334454).

Almost surely, 2^{9687939391292} is an apocalyptic number.

It is an amenable number.

9687939391292 is a deficient number, since it is larger than the sum of its proper divisors (7283068635604).

9687939391292 is a wasteful number, since it uses less digits than its factorization.

9687939391292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97997 (or 97995 counting only the distinct ones).

The product of its digits is 714256704, while the sum is 77.

The spelling of 9687939391292 in words is "nine trillion, six hundred eighty-seven billion, nine hundred thirty-nine million, three hundred ninety-one thousand, two hundred ninety-two".