67625852677 has 4 divisors (see below), whose sum is σ = 67630799340. Its totient is φ = 67620906016.

The previous prime is 67625852653. The next prime is 67625852711. The reversal of 67625852677 is 77625852676.

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 21432667201 + 46193185476 = 146399^2 + 214926^2 .

It is a cyclic number.

It is not a de Polignac number, because 67625852677 - 2⁷ = 67625852549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67625853677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2452768 + ... + 2480185.

It is an arithmetic number, because the mean of its divisors is an integer number (16907699835).

Almost surely, 2^67625852677 is an apocalyptic number.

It is an amenable number.

67625852677 is a deficient number, since it is larger than the sum of its proper divisors (4946663).

67625852677 is a wasteful number, since it uses less digits than its factorization.

67625852677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4946662.

The product of its digits is 59270400, while the sum is 61.

Subtracting 67625852677 from its reverse (77625852676), we obtain a palindrome (9999999999).

The spelling of 67625852677 in words is "sixty-seven billion, six hundred twenty-five million, eight hundred fifty-two thousand, six hundred seventy-seven".