11782360649 has 4 divisors (see below), whose sum is σ = 11782583040. Its totient is φ = 11782138260.

The previous prime is 11782360637. The next prime is 11782360661. The reversal of 11782360649 is 94606328711.

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 an interprime number because it is at equal distance from previous prime (11782360637) and next prime (11782360661).

It is a cyclic number.

It is not a de Polignac number, because 11782360649 - 2²⁰ = 11781312073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11782360669) 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, 19412 + ... + 154730.

It is an arithmetic number, because the mean of its divisors is an integer number (2945645760).

Almost surely, 2^11782360649 is an apocalyptic number.

It is an amenable number.

11782360649 is a deficient number, since it is larger than the sum of its proper divisors (222391).

11782360649 is an equidigital number, since it uses as much as digits as its factorization.

11782360649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222390.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 11782360649 in words is "eleven billion, seven hundred eighty-two million, three hundred sixty thousand, six hundred forty-nine".