68484422887 has 4 divisors (see below), whose sum is σ = 68536345680. Its totient is φ = 68432500096.

The previous prime is 68484422873. The next prime is 68484422899. The reversal of 68484422887 is 78822448486.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78822448486 = 2 ⋅39411224243.

It is a cyclic number.

It is not a de Polignac number, because 68484422887 - 2⁷ = 68484422759 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 (68484422387) 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, 25959418 + ... + 25962055.

It is an arithmetic number, because the mean of its divisors is an integer number (17134086420).

Almost surely, 2^68484422887 is an apocalyptic number.

68484422887 is a deficient number, since it is larger than the sum of its proper divisors (51922793).

68484422887 is a wasteful number, since it uses less digits than its factorization.

68484422887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51922792.

The product of its digits is 44040192, while the sum is 61.

The spelling of 68484422887 in words is "sixty-eight billion, four hundred eighty-four million, four hundred twenty-two thousand, eight hundred eighty-seven".