11672381977 has 2 divisors, whose sum is σ = 11672381978. Its totient is φ = 11672381976.

The previous prime is 11672381947. The next prime is 11672381989. The reversal of 11672381977 is 77918327611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9790904601 + 1881477376 = 98949^2 + 43376^2 .

It is a cyclic number.

It is not a de Polignac number, because 11672381977 - 2¹⁹ = 11671857689 is a prime.

It is not a weakly prime, because it can be changed into another prime (11672381947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5836190988 + 5836190989.

It is an arithmetic number, because the mean of its divisors is an integer number (5836190989).

Almost surely, 2^11672381977 is an apocalyptic number.

It is an amenable number.

11672381977 is a deficient number, since it is larger than the sum of its proper divisors (1).

11672381977 is an equidigital number, since it uses as much as digits as its factorization.

11672381977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 52.

The spelling of 11672381977 in words is "eleven billion, six hundred seventy-two million, three hundred eighty-one thousand, nine hundred seventy-seven".