4026640246663 has 2 divisors, whose sum is σ = 4026640246664. Its totient is φ = 4026640246662.

The previous prime is 4026640246649. The next prime is 4026640246687. The reversal of 4026640246663 is 3666420466204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4026640246663 - 2³³ = 4018050312071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4026640246693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2013320123331 + 2013320123332.

It is an arithmetic number, because the mean of its divisors is an integer number (2013320123332).

Almost surely, 2^{4026640246663} is an apocalyptic number.

4026640246663 is a deficient number, since it is larger than the sum of its proper divisors (1).

4026640246663 is an equidigital number, since it uses as much as digits as its factorization.

4026640246663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5971968, while the sum is 49.

The spelling of 4026640246663 in words is "four trillion, twenty-six billion, six hundred forty million, two hundred forty-six thousand, six hundred sixty-three".