2002681049 has 2 divisors, whose sum is σ = 2002681050. Its totient is φ = 2002681048.

The previous prime is 2002681019. The next prime is 2002681063. The reversal of 2002681049 is 9401862002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2000951824 + 1729225 = 44732^2 + 1315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002681049 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002681019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001340524 + 1001340525.

It is an arithmetic number, because the mean of its divisors is an integer number (1001340525).

Almost surely, 2^2002681049 is an apocalyptic number.

It is an amenable number.

2002681049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002681049 is an equidigital number, since it uses as much as digits as its factorization.

2002681049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 2002681049 is about 44751.3245502298. The cubic root of 2002681049 is about 1260.4837835288.

The spelling of 2002681049 in words is "two billion, two million, six hundred eighty-one thousand, forty-nine".