11086194681 has 15 divisors (see below), whose sum is σ = 16562274421. Its totient is φ = 7390164708.

The previous prime is 11086194667. The next prime is 11086194761. The reversal of 11086194681 is 18649168011.

It is a happy number.

The square root of 11086194681 is 105291.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-11086194681 is a prime.

It is a super-2 number, since 2×11086194681² (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 (11086194661) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 941770 + ... + 953468.

Almost surely, 2^11086194681 is an apocalyptic number.

11086194681 is the 105291-st square number.

11086194681 is the 52646-th centered octagonal number.

It is an amenable number.

11086194681 is a deficient number, since it is larger than the sum of its proper divisors (5476079740).

11086194681 is an frugal number, since it uses more digits than its factorization.

11086194681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23410 (or 11702 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

Multiplying 11086194681 by its product of nonzero digits (82944), we get a square (919533331620864 = 30323808²).

The spelling of 11086194681 in words is "eleven billion, eighty-six million, one hundred ninety-four thousand, six hundred eighty-one".