67677372522209 has 2 divisors, whose sum is σ = 67677372522210. Its totient is φ = 67677372522208.

The previous prime is 67677372522157. The next prime is 67677372522251. The reversal of 67677372522209 is 90222527377676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64822465537600 + 2854906984609 = 8051240^2 + 1689647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67677372522209 is a prime.

It is not a weakly prime, because it can be changed into another prime (67677372822209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33838686261104 + 33838686261105.

It is an arithmetic number, because the mean of its divisors is an integer number (33838686261105).

Almost surely, 2^{67677372522209} is an apocalyptic number.

It is an amenable number.

67677372522209 is a deficient number, since it is larger than the sum of its proper divisors (1).

67677372522209 is an equidigital number, since it uses as much as digits as its factorization.

67677372522209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186701760, while the sum is 65.

The spelling of 67677372522209 in words is "sixty-seven trillion, six hundred seventy-seven billion, three hundred seventy-two million, five hundred twenty-two thousand, two hundred nine".