2663881001 has 2 divisors, whose sum is σ = 2663881002. Its totient is φ = 2663881000.

The previous prime is 2663880941. The next prime is 2663881013. The reversal of 2663881001 is 1001883662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2329027600 + 334853401 = 48260^2 + 18299^2 .

It is a cyclic number.

It is not a de Polignac number, because 2663881001 - 2¹⁸ = 2663618857 is a prime.

It is not a weakly prime, because it can be changed into another prime (2663841001) 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, 1331940500 + 1331940501.

It is an arithmetic number, because the mean of its divisors is an integer number (1331940501).

Almost surely, 2^2663881001 is an apocalyptic number.

It is an amenable number.

2663881001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663881001 is an equidigital number, since it uses as much as digits as its factorization.

2663881001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2663881001 is about 51612.7988099851. The cubic root of 2663881001 is about 1386.2395122908.

The spelling of 2663881001 in words is "two billion, six hundred sixty-three million, eight hundred eighty-one thousand, one".