684842312711 has 2 divisors, whose sum is σ = 684842312712. Its totient is φ = 684842312710.

The previous prime is 684842312677. The next prime is 684842312747. The reversal of 684842312711 is 117213248486.

684842312711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 684842312711 - 2⁶ = 684842312647 is a prime.

It is a super-2 number, since 2×684842312711² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (684842312771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342421156355 + 342421156356.

It is an arithmetic number, because the mean of its divisors is an integer number (342421156356).

Almost surely, 2^684842312711 is an apocalyptic number.

684842312711 is a deficient number, since it is larger than the sum of its proper divisors (1).

684842312711 is an equidigital number, since it uses as much as digits as its factorization.

684842312711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 47.

The spelling of 684842312711 in words is "six hundred eighty-four billion, eight hundred forty-two million, three hundred twelve thousand, seven hundred eleven".