11976280489 has 2 divisors, whose sum is σ = 11976280490. Its totient is φ = 11976280488.

The previous prime is 11976280483. The next prime is 11976280517. The reversal of 11976280489 is 98408267911.

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., 11959609600 + 16670889 = 109360^2 + 4083^2 .

It is a cyclic number.

It is not a de Polignac number, because 11976280489 - 2⁵ = 11976280457 is a prime.

It is not a weakly prime, because it can be changed into another prime (11976280483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5988140244 + 5988140245.

It is an arithmetic number, because the mean of its divisors is an integer number (5988140245).

Almost surely, 2^11976280489 is an apocalyptic number.

It is an amenable number.

11976280489 is a deficient number, since it is larger than the sum of its proper divisors (1).

11976280489 is an equidigital number, since it uses as much as digits as its factorization.

11976280489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 11976280489 in words is "eleven billion, nine hundred seventy-six million, two hundred eighty thousand, four hundred eighty-nine".