97122839188609 has 4 divisors (see below), whose sum is σ = 104593826818516. Its totient is φ = 89651851558704.

The previous prime is 97122839188603. The next prime is 97122839188643. The reversal of 97122839188609 is 90688193822179.

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 59938796260225 + 37184042928384 = 7742015^2 + 6097872^2 .

It is a cyclic number.

It is not a de Polignac number, because 97122839188609 - 2³ = 97122839188601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97122839188601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3735493814934 + ... + 3735493814959.

It is an arithmetic number, because the mean of its divisors is an integer number (26148456704629).

Almost surely, 2^{97122839188609} is an apocalyptic number.

It is an amenable number.

97122839188609 is a deficient number, since it is larger than the sum of its proper divisors (7470987629907).

97122839188609 is a wasteful number, since it uses less digits than its factorization.

97122839188609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7470987629906.

The product of its (nonzero) digits is 188116992, while the sum is 73.

The spelling of 97122839188609 in words is "ninety-seven trillion, one hundred twenty-two billion, eight hundred thirty-nine million, one hundred eighty-eight thousand, six hundred nine".