213079665679 has 2 divisors, whose sum is σ = 213079665680. Its totient is φ = 213079665678.

The previous prime is 213079665641. The next prime is 213079665707. The reversal of 213079665679 is 976566970312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213079665679 - 2²³ = 213071277071 is a prime.

It is a super-3 number, since 3×213079665679³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213079635679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106539832839 + 106539832840.

It is an arithmetic number, because the mean of its divisors is an integer number (106539832840).

Almost surely, 2^213079665679 is an apocalyptic number.

213079665679 is a deficient number, since it is larger than the sum of its proper divisors (1).

213079665679 is an equidigital number, since it uses as much as digits as its factorization.

213079665679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25719120, while the sum is 61.

The spelling of 213079665679 in words is "two hundred thirteen billion, seventy-nine million, six hundred sixty-five thousand, six hundred seventy-nine".