67792538867 has 4 divisors (see below), whose sum is σ = 68450718960. Its totient is φ = 67134358776.

The previous prime is 67792538857. The next prime is 67792538881. The reversal of 67792538867 is 76883529776.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67792538867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67792538797 and 67792538806.

It is not an unprimeable number, because it can be changed into a prime (67792538857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329089892 + ... + 329090097.

It is an arithmetic number, because the mean of its divisors is an integer number (17112679740).

Almost surely, 2^67792538867 is an apocalyptic number.

67792538867 is a deficient number, since it is larger than the sum of its proper divisors (658180093).

67792538867 is a wasteful number, since it uses less digits than its factorization.

67792538867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658180092.

The product of its digits is 213373440, while the sum is 68.

Subtracting 67792538867 from its reverse (76883529776), we obtain a palindrome (9090990909).

The spelling of 67792538867 in words is "sixty-seven billion, seven hundred ninety-two million, five hundred thirty-eight thousand, eight hundred sixty-seven".