9120991069 has 8 divisors (see below), whose sum is σ = 9134933760. Its totient is φ = 9107061600.

The previous prime is 9120991039. The next prime is 9120991081. The reversal of 9120991069 is 9601990219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9120991069 - 2²⁵ = 9087436637 is a prime.

It is a super-2 number, since 2×9120991069² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9120991039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3338434 + ... + 3341164.

It is an arithmetic number, because the mean of its divisors is an integer number (1141866720).

Almost surely, 2^9120991069 is an apocalyptic number.

It is an amenable number.

9120991069 is a deficient number, since it is larger than the sum of its proper divisors (13942691).

9120991069 is a wasteful number, since it uses less digits than its factorization.

9120991069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6611.

The product of its (nonzero) digits is 78732, while the sum is 46.

The square root of 9120991069 is about 95503.8798635951. The cubic root of 9120991069 is about 2089.3635317668.

The spelling of 9120991069 in words is "nine billion, one hundred twenty million, nine hundred ninety-one thousand, sixty-nine".