9121619317 has 4 divisors (see below), whose sum is σ = 9167456800. Its totient is φ = 9075781836.

The previous prime is 9121619261. The next prime is 9121619383. The reversal of 9121619317 is 7139161219.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7139161219 = 1709 ⋅4177391.

It is a cyclic number.

It is not a de Polignac number, because 9121619317 - 2¹¹ = 9121617269 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 9121619317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9121619417) 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, 22918443 + ... + 22918840.

It is an arithmetic number, because the mean of its divisors is an integer number (2291864200).

Almost surely, 2^9121619317 is an apocalyptic number.

It is an amenable number.

9121619317 is a deficient number, since it is larger than the sum of its proper divisors (45837483).

9121619317 is a wasteful number, since it uses less digits than its factorization.

9121619317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45837482.

The product of its digits is 20412, while the sum is 40.

The square root of 9121619317 is about 95507.1689298767. The cubic root of 9121619317 is about 2089.4115020043.

The spelling of 9121619317 in words is "nine billion, one hundred twenty-one million, six hundred nineteen thousand, three hundred seventeen".