2121468049 has 2 divisors, whose sum is σ = 2121468050. Its totient is φ = 2121468048.

The previous prime is 2121467987. The next prime is 2121468073. The reversal of 2121468049 is 9408641212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1420913025 + 700555024 = 37695^2 + 26468^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121468049 - 2²⁹ = 1584597137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121467999 and 2121468017.

It is not a weakly prime, because it can be changed into another prime (2121468079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060734024 + 1060734025.

It is an arithmetic number, because the mean of its divisors is an integer number (1060734025).

Almost surely, 2^2121468049 is an apocalyptic number.

It is an amenable number.

2121468049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121468049 is an equidigital number, since it uses as much as digits as its factorization.

2121468049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2121468049 is about 46059.3969673942. The cubic root of 2121468049 is about 1284.9281147996.

The spelling of 2121468049 in words is "two billion, one hundred twenty-one million, four hundred sixty-eight thousand, forty-nine".