97909073993 has 16 divisors (see below), whose sum is σ = 102397536000. Its totient is φ = 93531065472.

The previous prime is 97909073963. The next prime is 97909074061. The reversal of 97909073993 is 39937090979.

It is a cyclic number.

It is not a de Polignac number, because 97909073993 - 2¹⁰ = 97909072969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97909073903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429653 + ... + 616781.

It is an arithmetic number, because the mean of its divisors is an integer number (6399846000).

Almost surely, 2^97909073993 is an apocalyptic number.

It is an amenable number.

97909073993 is a deficient number, since it is larger than the sum of its proper divisors (4488462007).

97909073993 is a wasteful number, since it uses less digits than its factorization.

97909073993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187424.

The product of its (nonzero) digits is 26040609, while the sum is 65.

The spelling of 97909073993 in words is "ninety-seven billion, nine hundred nine million, seventy-three thousand, nine hundred ninety-three".