67842601049 has 4 divisors (see below), whose sum is σ = 67848221364. Its totient is φ = 67836980736.

The previous prime is 67842601039. The next prime is 67842601051. The reversal of 67842601049 is 94010624876.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28427646025 + 39414955024 = 168605^2 + 198532^2 .

It is a cyclic number.

It is not a de Polignac number, because 67842601049 - 2⁴ = 67842601033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67842600994 and 67842601012.

It is not an unprimeable number, because it can be changed into a prime (67842601019) 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 in 3 ways as a sum of consecutive naturals, for example, 2792012 + ... + 2816205.

It is an arithmetic number, because the mean of its divisors is an integer number (16962055341).

Almost surely, 2^67842601049 is an apocalyptic number.

It is an amenable number.

67842601049 is a deficient number, since it is larger than the sum of its proper divisors (5620315).

67842601049 is a wasteful number, since it uses less digits than its factorization.

67842601049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620314.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 67842601049 in words is "sixty-seven billion, eight hundred forty-two million, six hundred one thousand, forty-nine".