67689241449 has 16 divisors (see below), whose sum is σ = 90429331200. Its totient is φ = 45037709136.

The previous prime is 67689241441. The next prime is 67689241453. The reversal of 67689241449 is 94414298676.

It is not a de Polignac number, because 67689241449 - 2³ = 67689241441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67689241392 and 67689241401.

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 in 15 ways as a sum of consecutive naturals, for example, 8395182 + ... + 8403240.

It is an arithmetic number, because the mean of its divisors is an integer number (5651833200).

Almost surely, 2^67689241449 is an apocalyptic number.

It is an amenable number.

67689241449 is a deficient number, since it is larger than the sum of its proper divisors (22740089751).

67689241449 is a wasteful number, since it uses less digits than its factorization.

67689241449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13204.

The product of its digits is 20901888, while the sum is 60.

The spelling of 67689241449 in words is "sixty-seven billion, six hundred eighty-nine million, two hundred forty-one thousand, four hundred forty-nine".