5042686279691 has 2 divisors, whose sum is σ = 5042686279692. Its totient is φ = 5042686279690.

The previous prime is 5042686279669. The next prime is 5042686279717. The reversal of 5042686279691 is 1969726862405.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5042686279691 is a prime.

It is not a weakly prime, because it can be changed into another prime (5042686279601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2521343139845 + 2521343139846.

It is an arithmetic number, because the mean of its divisors is an integer number (2521343139846).

Almost surely, 2^{5042686279691} is an apocalyptic number.

5042686279691 is a deficient number, since it is larger than the sum of its proper divisors (1).

5042686279691 is an equidigital number, since it uses as much as digits as its factorization.

5042686279691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78382080, while the sum is 65.

The spelling of 5042686279691 in words is "five trillion, forty-two billion, six hundred eighty-six million, two hundred seventy-nine thousand, six hundred ninety-one".