9130998817205 has 4 divisors (see below), whose sum is σ = 10957198580652. Its totient is φ = 7304799053760.

The previous prime is 9130998817201. The next prime is 9130998817273. The reversal of 9130998817205 is 5027188990319.

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 5339251305124 + 3791747512081 = 2310682^2 + 1947241^2 .

It is not a de Polignac number, because 9130998817205 - 2² = 9130998817201 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 (9130998817201) 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, 913099881716 + ... + 913099881725.

It is an arithmetic number, because the mean of its divisors is an integer number (2739299645163).

Almost surely, 2^{9130998817205} is an apocalyptic number.

It is an amenable number.

9130998817205 is a deficient number, since it is larger than the sum of its proper divisors (1826199763447).

9130998817205 is a wasteful number, since it uses less digits than its factorization.

9130998817205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826199763446.

The product of its (nonzero) digits is 9797760, while the sum is 62.

The spelling of 9130998817205 in words is "nine trillion, one hundred thirty billion, nine hundred ninety-eight million, eight hundred seventeen thousand, two hundred five".