68430823567 has 4 divisors (see below), whose sum is σ = 72032445880. Its totient is φ = 64829201256.

The previous prime is 68430823561. The next prime is 68430823597. The reversal of 68430823567 is 76532803486.

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

It is not a de Polignac number, because 68430823567 - 2¹¹ = 68430821519 is a prime.

It is a super-2 number, since 2×68430823567² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68430823561) 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, 1800811128 + ... + 1800811165.

It is an arithmetic number, because the mean of its divisors is an integer number (18008111470).

Almost surely, 2^68430823567 is an apocalyptic number.

68430823567 is a deficient number, since it is larger than the sum of its proper divisors (3601622313).

68430823567 is a wasteful number, since it uses less digits than its factorization.

68430823567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3601622312.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 68430823567 in words is "sixty-eight billion, four hundred thirty million, eight hundred twenty-three thousand, five hundred sixty-seven".