9109261681 has 8 divisors (see below), whose sum is σ = 10126425344. Its totient is φ = 8137305360.

The previous prime is 9109261669. The next prime is 9109261697. The reversal of 9109261681 is 1861629019.

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 9109261681 - 2¹⁷ = 9109130609 is a prime.

It is a super-2 number, since 2×9109261681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9109261631) 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, 11301411 + ... + 11302216.

It is an arithmetic number, because the mean of its divisors is an integer number (1265803168).

Almost surely, 2^9109261681 is an apocalyptic number.

It is an amenable number.

9109261681 is a deficient number, since it is larger than the sum of its proper divisors (1017163663).

9109261681 is a wasteful number, since it uses less digits than its factorization.

9109261681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22603671.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 9109261681 is about 95442.4521950269. The cubic root of 9109261681 is about 2088.4675228429.

The spelling of 9109261681 in words is "nine billion, one hundred nine million, two hundred sixty-one thousand, six hundred eighty-one".