11833986261 has 4 divisors (see below), whose sum is σ = 15778648352. Its totient is φ = 7889324172.

The previous prime is 11833986259. The next prime is 11833986271. The reversal of 11833986261 is 16268933811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11833986261 - 2¹ = 11833986259 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 11833986261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11833986211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1972331041 + ... + 1972331046.

It is an arithmetic number, because the mean of its divisors is an integer number (3944662088).

Almost surely, 2^11833986261 is an apocalyptic number.

It is an amenable number.

11833986261 is a deficient number, since it is larger than the sum of its proper divisors (3944662091).

11833986261 is an equidigital number, since it uses as much as digits as its factorization.

11833986261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944662090.

The product of its digits is 373248, while the sum is 48.

The spelling of 11833986261 in words is "eleven billion, eight hundred thirty-three million, nine hundred eighty-six thousand, two hundred sixty-one".