2687608439993 has 2 divisors, whose sum is σ = 2687608439994. Its totient is φ = 2687608439992.

The previous prime is 2687608439927. The next prime is 2687608440001. The reversal of 2687608439993 is 3999348067862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2630014679824 + 57593760169 = 1621732^2 + 239987^2 .

It is a cyclic number.

It is not a de Polignac number, because 2687608439993 - 2¹⁴ = 2687608423609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2687608439993.

It is not a weakly prime, because it can be changed into another prime (2687608436993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343804219996 + 1343804219997.

It is an arithmetic number, because the mean of its divisors is an integer number (1343804219997).

Almost surely, 2^{2687608439993} is an apocalyptic number.

It is an amenable number.

2687608439993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2687608439993 is an equidigital number, since it uses as much as digits as its factorization.

2687608439993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846526464, while the sum is 74.

The spelling of 2687608439993 in words is "two trillion, six hundred eighty-seven billion, six hundred eight million, four hundred thirty-nine thousand, nine hundred ninety-three".