67455688655479 has 2 divisors, whose sum is σ = 67455688655480. Its totient is φ = 67455688655478.

The previous prime is 67455688655419. The next prime is 67455688655519. The reversal of 67455688655479 is 97455688655476.

67455688655479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67455688655479 - 2¹⁵ = 67455688622711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67455688655396 and 67455688655405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67455688655419) 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, 33727844327739 + 33727844327740.

It is an arithmetic number, because the mean of its divisors is an integer number (33727844327740).

Almost surely, 2^{67455688655479} is an apocalyptic number.

67455688655479 is a deficient number, since it is larger than the sum of its proper divisors (1).

67455688655479 is an equidigital number, since it uses as much as digits as its factorization.

67455688655479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60963840000, while the sum is 85.

The spelling of 67455688655479 in words is "sixty-seven trillion, four hundred fifty-five billion, six hundred eighty-eight million, six hundred fifty-five thousand, four hundred seventy-nine".