2421674861 has 2 divisors, whose sum is σ = 2421674862. Its totient is φ = 2421674860.

The previous prime is 2421674851. The next prime is 2421674869. The reversal of 2421674861 is 1684761242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1240377961 + 1181296900 = 35219^2 + 34370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2421674861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421674869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210837430 + 1210837431.

It is an arithmetic number, because the mean of its divisors is an integer number (1210837431).

Almost surely, 2^2421674861 is an apocalyptic number.

It is an amenable number.

2421674861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421674861 is an equidigital number, since it uses as much as digits as its factorization.

2421674861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 41.

The square root of 2421674861 is about 49210.5157562893. The cubic root of 2421674861 is about 1342.8843455887.

The spelling of 2421674861 in words is "two billion, four hundred twenty-one million, six hundred seventy-four thousand, eight hundred sixty-one".