68542266489 has 16 divisors (see below), whose sum is σ = 95371551744. Its totient is φ = 43704262800.

The previous prime is 68542266487. The next prime is 68542266517. The reversal of 68542266489 is 98466224586.

It is not a de Polignac number, because 68542266489 - 2¹ = 68542266487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68542266487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888324 + ... + 962394.

It is an arithmetic number, because the mean of its divisors is an integer number (5960721984).

Almost surely, 2^68542266489 is an apocalyptic number.

68542266489 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

68542266489 is a deficient number, since it is larger than the sum of its proper divisors (26829285255).

68542266489 is a wasteful number, since it uses less digits than its factorization.

68542266489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87508.

The product of its digits is 39813120, while the sum is 60.

The spelling of 68542266489 in words is "sixty-eight billion, five hundred forty-two million, two hundred sixty-six thousand, four hundred eighty-nine".