67134477858 has 48 divisors (see below), whose sum is σ = 158560015680. Its totient is φ = 18562517280.

The previous prime is 67134477857. The next prime is 67134477859. The reversal of 67134477858 is 85877443176.

It is an interprime number because it is at equal distance from previous prime (67134477857) and next prime (67134477859).

It is not an unprimeable number, because it can be changed into a prime (67134477857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 791293 + ... + 872016.

It is an arithmetic number, because the mean of its divisors is an integer number (3303333660).

Almost surely, 2^67134477858 is an apocalyptic number.

67134477858 is an abundant number, since it is smaller than the sum of its proper divisors (91425537822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67134477858 is a wasteful number, since it uses less digits than its factorization.

67134477858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663383 (or 1663352 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 60.

The spelling of 67134477858 in words is "sixty-seven billion, one hundred thirty-four million, four hundred seventy-seven thousand, eight hundred fifty-eight".