2663841001 has 2 divisors, whose sum is σ = 2663841002. Its totient is φ = 2663841000.

The previous prime is 2663840989. The next prime is 2663841031. The reversal of 2663841001 is 1001483662.

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., 2487615376 + 176225625 = 49876^2 + 13275^2 .

It is a cyclic number.

It is not a de Polignac number, because 2663841001 - 2¹⁵ = 2663808233 is a prime.

It is not a weakly prime, because it can be changed into another prime (2663841031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331920500 + 1331920501.

It is an arithmetic number, because the mean of its divisors is an integer number (1331920501).

Almost surely, 2^2663841001 is an apocalyptic number.

It is an amenable number.

2663841001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663841001 is an equidigital number, since it uses as much as digits as its factorization.

2663841001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2663841001 is about 51612.4113077465. The cubic root of 2663841001 is about 1386.2325738105.

The spelling of 2663841001 in words is "two billion, six hundred sixty-three million, eight hundred forty-one thousand, one".