67879980269 has 2 divisors, whose sum is σ = 67879980270. Its totient is φ = 67879980268.

The previous prime is 67879980197. The next prime is 67879980281. The reversal of 67879980269 is 96208997876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66010455625 + 1869524644 = 256925^2 + 43238^2 .

It is a cyclic number.

It is not a de Polignac number, because 67879980269 - 2²⁴ = 67863203053 is a prime.

It is a super-2 number, since 2×67879980269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67879980169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33939990134 + 33939990135.

It is an arithmetic number, because the mean of its divisors is an integer number (33939990135).

Almost surely, 2^67879980269 is an apocalyptic number.

It is an amenable number.

67879980269 is a deficient number, since it is larger than the sum of its proper divisors (1).

67879980269 is an equidigital number, since it uses as much as digits as its factorization.

67879980269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164602368, while the sum is 71.

The spelling of 67879980269 in words is "sixty-seven billion, eight hundred seventy-nine million, nine hundred eighty thousand, two hundred sixty-nine".