67242778151 has 2 divisors, whose sum is σ = 67242778152. Its totient is φ = 67242778150.

The previous prime is 67242778147. The next prime is 67242778189. The reversal of 67242778151 is 15187724276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67242778151 - 2² = 67242778147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67242778151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67242778111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33621389075 + 33621389076.

It is an arithmetic number, because the mean of its divisors is an integer number (33621389076).

Almost surely, 2^67242778151 is an apocalyptic number.

67242778151 is a deficient number, since it is larger than the sum of its proper divisors (1).

67242778151 is an equidigital number, since it uses as much as digits as its factorization.

67242778151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1317120, while the sum is 50.

The spelling of 67242778151 in words is "sixty-seven billion, two hundred forty-two million, seven hundred seventy-eight thousand, one hundred fifty-one".