8681075749 has 8 divisors (see below), whose sum is σ = 8713912320. Its totient is φ = 8648274096.

The previous prime is 8681075747. The next prime is 8681075759. The reversal of 8681075749 is 9475701868.

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 8681075749 - 2¹ = 8681075747 is a prime.

It is a super-2 number, since 2×8681075749² (a number of 21 digits) contains 22 as substring.

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 8681075749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8681075747) 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, 557532 + ... + 572890.

It is an arithmetic number, because the mean of its divisors is an integer number (1089239040).

Almost surely, 2^8681075749 is an apocalyptic number.

It is an amenable number.

8681075749 is a deficient number, since it is larger than the sum of its proper divisors (32836571).

8681075749 is a wasteful number, since it uses less digits than its factorization.

8681075749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17459.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The square root of 8681075749 is about 93172.2906716369. The cubic root of 8681075749 is about 2055.2177808240.

The spelling of 8681075749 in words is "eight billion, six hundred eighty-one million, seventy-five thousand, seven hundred forty-nine".