11776773461 has 2 divisors, whose sum is σ = 11776773462. Its totient is φ = 11776773460.

The previous prime is 11776773451. The next prime is 11776773493. The reversal of 11776773461 is 16437767711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7008870961 + 4767902500 = 83719^2 + 69050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11776773461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11776773451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5888386730 + 5888386731.

It is an arithmetic number, because the mean of its divisors is an integer number (5888386731).

Almost surely, 2^11776773461 is an apocalyptic number.

It is an amenable number.

11776773461 is a deficient number, since it is larger than the sum of its proper divisors (1).

11776773461 is an equidigital number, since it uses as much as digits as its factorization.

11776773461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1037232, while the sum is 50.

The spelling of 11776773461 in words is "eleven billion, seven hundred seventy-six million, seven hundred seventy-three thousand, four hundred sixty-one".