68142610 has 8 divisors (see below), whose sum is σ = 122656716. Its totient is φ = 27257040.

The previous prime is 68142601. The next prime is 68142611. The reversal of 68142610 is 1624186.

It can be written as a sum of positive squares in 2 ways, for example, as 55547209 + 12595401 = 7453^2 + 3549^2 .

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

It is a super-2 number, since 2×68142610² = 9286830595224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68142611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3407121 + ... + 3407140.

Almost surely, 2^68142610 is an apocalyptic number.

68142610 is a deficient number, since it is larger than the sum of its proper divisors (54514106).

68142610 is a wasteful number, since it uses less digits than its factorization.

68142610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814268.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 68142610 is about 8254.8537237192. The cubic root of 68142610 is about 408.4506466576.

Adding to 68142610 its reverse (1624186), we get a palindrome (69766796).

The spelling of 68142610 in words is "sixty-eight million, one hundred forty-two thousand, six hundred ten".