67689241453 has 2 divisors, whose sum is σ = 67689241454. Its totient is φ = 67689241452.

The previous prime is 67689241441. The next prime is 67689241463. The reversal of 67689241453 is 35414298676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61225563844 + 6463677609 = 247438^2 + 80397^2 .

It is a cyclic number.

It is not a de Polignac number, because 67689241453 - 2²⁹ = 67152370541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67689241394 and 67689241403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67689241423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33844620726 + 33844620727.

It is an arithmetic number, because the mean of its divisors is an integer number (33844620727).

Almost surely, 2^67689241453 is an apocalyptic number.

It is an amenable number.

67689241453 is a deficient number, since it is larger than the sum of its proper divisors (1).

67689241453 is an equidigital number, since it uses as much as digits as its factorization.

67689241453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 55.

The spelling of 67689241453 in words is "sixty-seven billion, six hundred eighty-nine million, two hundred forty-one thousand, four hundred fifty-three".