11784988761 has 32 divisors (see below), whose sum is σ = 20477092608. Its totient is φ = 5850593280.

The previous prime is 11784988739. The next prime is 11784988769. The reversal of 11784988761 is 16788948711.

11784988761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11784988761 - 2⁵ = 11784988729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11784988695 and 11784988704.

It is not an unprimeable number, because it can be changed into a prime (11784988769) 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 31 ways as a sum of consecutive naturals, for example, 1265020 + ... + 1274301.

It is an arithmetic number, because the mean of its divisors is an integer number (639909144).

Almost surely, 2^11784988761 is an apocalyptic number.

It is an amenable number.

11784988761 is a deficient number, since it is larger than the sum of its proper divisors (8692103847).

11784988761 is a wasteful number, since it uses less digits than its factorization.

11784988761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539361.

The product of its digits is 5419008, while the sum is 60.

The spelling of 11784988761 in words is "eleven billion, seven hundred eighty-four million, nine hundred eighty-eight thousand, seven hundred sixty-one".