67679520990269 has 2 divisors, whose sum is σ = 67679520990270. Its totient is φ = 67679520990268.

The previous prime is 67679520990247. The next prime is 67679520990271. The reversal of 67679520990269 is 96209902597676.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55982867908900 + 11696653081369 = 7482170^2 + 3420037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67679520990269 is a prime.

It is a super-2 number, since 2×67679520990269² (a number of 28 digits) contains 22 as substring.

Together with 67679520990271, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67679520990269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67679520990209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33839760495134 + 33839760495135.

It is an arithmetic number, because the mean of its divisors is an integer number (33839760495135).

Almost surely, 2^{67679520990269} is an apocalyptic number.

It is an amenable number.

67679520990269 is a deficient number, since it is larger than the sum of its proper divisors (1).

67679520990269 is an equidigital number, since it uses as much as digits as its factorization.

67679520990269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1388832480, while the sum is 77.

The spelling of 67679520990269 in words is "sixty-seven trillion, six hundred seventy-nine billion, five hundred twenty million, nine hundred ninety thousand, two hundred sixty-nine".