68785448146 has 8 divisors (see below), whose sum is σ = 103180754124. Its totient is φ = 34391863440.

The previous prime is 68785448143. The next prime is 68785448153. The reversal of 68785448146 is 64184458786.

It can be written as a sum of positive squares in 2 ways, for example, as 68428804921 + 356643225 = 261589^2 + 18885^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68785448143) 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, 325285 + ... + 493336.

Almost surely, 2^68785448146 is an apocalyptic number.

68785448146 is a deficient number, since it is larger than the sum of its proper divisors (34395305978).

68785448146 is a wasteful number, since it uses less digits than its factorization.

68785448146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860636.

The product of its digits is 41287680, while the sum is 61.

The spelling of 68785448146 in words is "sixty-eight billion, seven hundred eighty-five million, four hundred forty-eight thousand, one hundred forty-six".