67689241448 has 8 divisors (see below), whose sum is σ = 126917327730. Its totient is φ = 33844620720.

The previous prime is 67689241441. The next prime is 67689241453. The reversal of 67689241448 is 84414298676.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 66410320804 + 1278920644 = 257702^2 + 35762^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×67689241448² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67689241441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4230577583 + ... + 4230577598.

Almost surely, 2^67689241448 is an apocalyptic number.

It is an amenable number.

67689241448 is a deficient number, since it is larger than the sum of its proper divisors (59228086282).

67689241448 is a wasteful number, since it uses less digits than its factorization.

67689241448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8461155187 (or 8461155183 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 59.

The spelling of 67689241448 in words is "sixty-seven billion, six hundred eighty-nine million, two hundred forty-one thousand, four hundred forty-eight".