67912377289 has 2 divisors, whose sum is σ = 67912377290. Its totient is φ = 67912377288.

The previous prime is 67912377251. The next prime is 67912377329. The reversal of 67912377289 is 98277321976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39348673225 + 28563704064 = 198365^2 + 169008^2 .

It is a cyclic number.

It is not a de Polignac number, because 67912377289 - 2¹⁷ = 67912246217 is a prime.

It is a super-2 number, since 2×67912377289² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67912377209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33956188644 + 33956188645.

It is an arithmetic number, because the mean of its divisors is an integer number (33956188645).

Almost surely, 2^67912377289 is an apocalyptic number.

It is an amenable number.

67912377289 is a deficient number, since it is larger than the sum of its proper divisors (1).

67912377289 is an equidigital number, since it uses as much as digits as its factorization.

67912377289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16003008, while the sum is 61.

The spelling of 67912377289 in words is "sixty-seven billion, nine hundred twelve million, three hundred seventy-seven thousand, two hundred eighty-nine".