67657677802213 has 2 divisors, whose sum is σ = 67657677802214. Its totient is φ = 67657677802212.

The previous prime is 67657677802177. The next prime is 67657677802243. The reversal of 67657677802213 is 31220877675676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64168078208004 + 3489599594209 = 8010498^2 + 1868047^2 .

It is a cyclic number.

It is not a de Polignac number, because 67657677802213 - 2¹⁷ = 67657677671141 is a prime.

It is a super-2 number, since 2×67657677802213² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67657677802243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33828838901106 + 33828838901107.

It is an arithmetic number, because the mean of its divisors is an integer number (33828838901107).

Almost surely, 2^{67657677802213} is an apocalyptic number.

It is an amenable number.

67657677802213 is a deficient number, since it is larger than the sum of its proper divisors (1).

67657677802213 is an equidigital number, since it uses as much as digits as its factorization.

67657677802213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248935680, while the sum is 67.

The spelling of 67657677802213 in words is "sixty-seven trillion, six hundred fifty-seven billion, six hundred seventy-seven million, eight hundred two thousand, two hundred thirteen".