97107111808085 has 4 divisors (see below), whose sum is σ = 116528534169708. Its totient is φ = 77685689446464.

The previous prime is 97107111808043. The next prime is 97107111808097. The reversal of 97107111808085 is 58080811170179.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25185161584324 + 71921950223761 = 5018482^2 + 8480681^2 .

It is a cyclic number.

It is not a de Polignac number, because 97107111808085 - 2⁸ = 97107111807829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97107111808085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9710711180804 + ... + 9710711180813.

It is an arithmetic number, because the mean of its divisors is an integer number (29132133542427).

Almost surely, 2^{97107111808085} is an apocalyptic number.

It is an amenable number.

97107111808085 is a deficient number, since it is larger than the sum of its proper divisors (19421422361623).

97107111808085 is a wasteful number, since it uses less digits than its factorization.

97107111808085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19421422361622.

The product of its (nonzero) digits is 1128960, while the sum is 56.

The spelling of 97107111808085 in words is "ninety-seven trillion, one hundred seven billion, one hundred eleven million, eight hundred eight thousand, eighty-five".