97545807993 has 16 divisors (see below), whose sum is σ = 133629237440. Its totient is φ = 63247853376.

The previous prime is 97545807907. The next prime is 97545808021. The reversal of 97545807993 is 39970854579.

It is not a de Polignac number, because 97545807993 - 2²⁸ = 97277372537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97545877993) 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, 108771 + ... + 454887.

It is an arithmetic number, because the mean of its divisors is an integer number (8351827340).

Almost surely, 2^97545807993 is an apocalyptic number.

It is an amenable number.

97545807993 is a deficient number, since it is larger than the sum of its proper divisors (36083429447).

97545807993 is a wasteful number, since it uses less digits than its factorization.

97545807993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348696.

The product of its (nonzero) digits is 85730400, while the sum is 66.

The spelling of 97545807993 in words is "ninety-seven billion, five hundred forty-five million, eight hundred seven thousand, nine hundred ninety-three".