11684432777 has 2 divisors, whose sum is σ = 11684432778. Its totient is φ = 11684432776.

The previous prime is 11684432687. The next prime is 11684432807. The reversal of 11684432777 is 77723448611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11558185081 + 126247696 = 107509^2 + 11236^2 .

It is a cyclic number.

It is not a de Polignac number, because 11684432777 - 2²⁰ = 11683384201 is a prime.

It is not a weakly prime, because it can be changed into another prime (11684434777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5842216388 + 5842216389.

It is an arithmetic number, because the mean of its divisors is an integer number (5842216389).

Almost surely, 2^11684432777 is an apocalyptic number.

It is an amenable number.

11684432777 is a deficient number, since it is larger than the sum of its proper divisors (1).

11684432777 is an equidigital number, since it uses as much as digits as its factorization.

11684432777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 50.

The spelling of 11684432777 in words is "eleven billion, six hundred eighty-four million, four hundred thirty-two thousand, seven hundred seventy-seven".