67673718077 has 4 divisors (see below), whose sum is σ = 77341392096. Its totient is φ = 58006044060.

The previous prime is 67673718061. The next prime is 67673718127. The reversal of 67673718077 is 77081737676.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67673718077 - 2⁴ = 67673718061 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 (67673118077) 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, 4833836999 + ... + 4833837012.

It is an arithmetic number, because the mean of its divisors is an integer number (19335348024).

Almost surely, 2^67673718077 is an apocalyptic number.

It is an amenable number.

67673718077 is a deficient number, since it is larger than the sum of its proper divisors (9667674019).

67673718077 is an equidigital number, since it uses as much as digits as its factorization.

67673718077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9667674018.

The product of its (nonzero) digits is 14521248, while the sum is 59.

The spelling of 67673718077 in words is "sixty-seven billion, six hundred seventy-three million, seven hundred eighteen thousand, seventy-seven".