11601823777 has 2 divisors, whose sum is σ = 11601823778. Its totient is φ = 11601823776.

The previous prime is 11601823771. The next prime is 11601823787. The reversal of 11601823777 is 77732810611.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11414571921 + 187251856 = 106839^2 + 13684^2 .

It is a cyclic number.

It is not a de Polignac number, because 11601823777 - 2¹⁵ = 11601791009 is a prime.

It is not a weakly prime, because it can be changed into another prime (11601823771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5800911888 + 5800911889.

It is an arithmetic number, because the mean of its divisors is an integer number (5800911889).

Almost surely, 2^11601823777 is an apocalyptic number.

It is an amenable number.

11601823777 is a deficient number, since it is larger than the sum of its proper divisors (1).

11601823777 is an equidigital number, since it uses as much as digits as its factorization.

11601823777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 43.

The spelling of 11601823777 in words is "eleven billion, six hundred one million, eight hundred twenty-three thousand, seven hundred seventy-seven".