11291285761 has 8 divisors (see below), whose sum is σ = 12906219200. Its totient is φ = 9676825488.

The previous prime is 11291285729. The next prime is 11291285767. The reversal of 11291285761 is 16758219211.

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 11291285761 - 2⁵ = 11291285729 is a prime.

It is a super-2 number, since 2×11291285761² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11291285767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65586 + ... + 163963.

It is an arithmetic number, because the mean of its divisors is an integer number (1613277400).

Almost surely, 2^11291285761 is an apocalyptic number.

It is an amenable number.

11291285761 is a deficient number, since it is larger than the sum of its proper divisors (1614933439).

11291285761 is an equidigital number, since it uses as much as digits as its factorization.

11291285761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236583.

The product of its digits is 60480, while the sum is 43.

The spelling of 11291285761 in words is "eleven billion, two hundred ninety-one million, two hundred eighty-five thousand, seven hundred sixty-one".