9121190752609 has 16 divisors (see below), whose sum is σ = 10303008331392. Its totient is φ = 8011764845568.

The previous prime is 9121190752607. The next prime is 9121190752621. The reversal of 9121190752609 is 9062570911219.

It is a cyclic number.

It is not a de Polignac number, because 9121190752609 - 2¹ = 9121190752607 is a prime.

It is a super-2 number, since 2×9121190752609² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9121190752607) 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, 78972487 + ... + 79087900.

It is an arithmetic number, because the mean of its divisors is an integer number (643938020712).

Almost surely, 2^{9121190752609} is an apocalyptic number.

It is an amenable number.

9121190752609 is a deficient number, since it is larger than the sum of its proper divisors (1181817578783).

9121190752609 is a wasteful number, since it uses less digits than its factorization.

9121190752609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158060616.

The product of its (nonzero) digits is 612360, while the sum is 52.

The spelling of 9121190752609 in words is "nine trillion, one hundred twenty-one billion, one hundred ninety million, seven hundred fifty-two thousand, six hundred nine".