11854268661 has 16 divisors (see below), whose sum is σ = 16197369344. Its totient is φ = 7709297904.

The previous prime is 11854268659. The next prime is 11854268669. The reversal of 11854268661 is 16686245811.

It is not a de Polignac number, because 11854268661 - 2¹ = 11854268659 is a prime.

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 11854268661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11854268669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265591 + ... + 306996.

It is an arithmetic number, because the mean of its divisors is an integer number (1012335584).

Almost surely, 2^11854268661 is an apocalyptic number.

It is an amenable number.

11854268661 is a deficient number, since it is larger than the sum of its proper divisors (4343100683).

11854268661 is a wasteful number, since it uses less digits than its factorization.

11854268661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572760.

The product of its digits is 552960, while the sum is 48.

The spelling of 11854268661 in words is "eleven billion, eight hundred fifty-four million, two hundred sixty-eight thousand, six hundred sixty-one".