97387729517 has 8 divisors (see below), whose sum is σ = 107318142624. Its totient is φ = 87805752048.

The previous prime is 97387729513. The next prime is 97387729531. The reversal of 97387729517 is 71592778379.

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

It is a cyclic number.

It is not a de Polignac number, because 97387729517 - 2² = 97387729513 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97387729513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87108323 + ... + 87109440.

It is an arithmetic number, because the mean of its divisors is an integer number (13414767828).

Almost surely, 2^97387729517 is an apocalyptic number.

It is an amenable number.

97387729517 is a deficient number, since it is larger than the sum of its proper divisors (9930413107).

97387729517 is a wasteful number, since it uses less digits than its factorization.

97387729517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174217819.

The product of its digits is 46675440, while the sum is 65.

The spelling of 97387729517 in words is "ninety-seven billion, three hundred eighty-seven million, seven hundred twenty-nine thousand, five hundred seventeen".