2641205912987 has 2 divisors, whose sum is σ = 2641205912988. Its totient is φ = 2641205912986.

The previous prime is 2641205912981. The next prime is 2641205913011. The reversal of 2641205912987 is 7892195021462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2641205912987 - 2²⁸ = 2640937477531 is a prime.

It is not a weakly prime, because it can be changed into another prime (2641205912981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320602956493 + 1320602956494.

It is an arithmetic number, because the mean of its divisors is an integer number (1320602956494).

Almost surely, 2^{2641205912987} is an apocalyptic number.

2641205912987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641205912987 is an equidigital number, since it uses as much as digits as its factorization.

2641205912987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 2641205912987 in words is "two trillion, six hundred forty-one billion, two hundred five million, nine hundred twelve thousand, nine hundred eighty-seven".