67368873557 has 4 divisors (see below), whose sum is σ = 70297955040. Its totient is φ = 64439792076.

The previous prime is 67368873503. The next prime is 67368873563. The reversal of 67368873557 is 75537886376.

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 67368873557 - 2²⁴ = 67352096341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67368873493 and 67368873502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67368873577) 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, 1464540707 + ... + 1464540752.

It is an arithmetic number, because the mean of its divisors is an integer number (17574488760).

Almost surely, 2^67368873557 is an apocalyptic number.

It is an amenable number.

67368873557 is a deficient number, since it is larger than the sum of its proper divisors (2929081483).

67368873557 is a wasteful number, since it uses less digits than its factorization.

67368873557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929081482.

The product of its digits is 177811200, while the sum is 65.

The spelling of 67368873557 in words is "sixty-seven billion, three hundred sixty-eight million, eight hundred seventy-three thousand, five hundred fifty-seven".