11784955697 has 4 divisors (see below), whose sum is σ = 11835535140. Its totient is φ = 11734376256.

The previous prime is 11784955669. The next prime is 11784955709. The reversal of 11784955697 is 79655948711.

11784955697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1915725361 + 9869230336 = 43769^2 + 99344^2 .

It is a cyclic number.

It is not a de Polignac number, because 11784955697 - 2²² = 11780761393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11784955607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25289372 + ... + 25289837.

It is an arithmetic number, because the mean of its divisors is an integer number (2958883785).

Almost surely, 2^11784955697 is an apocalyptic number.

It is an amenable number.

11784955697 is a deficient number, since it is larger than the sum of its proper divisors (50579443).

11784955697 is an equidigital number, since it uses as much as digits as its factorization.

11784955697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50579442.

The product of its digits is 19051200, while the sum is 62.

The spelling of 11784955697 in words is "eleven billion, seven hundred eighty-four million, nine hundred fifty-five thousand, six hundred ninety-seven".