68130770 has 32 divisors (see below), whose sum is σ = 129617280. Its totient is φ = 25712640.

The previous prime is 68130767. The next prime is 68130779. The reversal of 68130770 is 7703186.

It is a happy number.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (68130779) 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, 58514 + ... + 59666.

It is an arithmetic number, because the mean of its divisors is an integer number (4050540).

Almost surely, 2^68130770 is an apocalyptic number.

68130770 is a deficient number, since it is larger than the sum of its proper divisors (61486510).

68130770 is a wasteful number, since it uses less digits than its factorization.

68130770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 68130770 is about 8254.1365387301. The cubic root of 68130770 is about 408.4269887448.

The spelling of 68130770 in words is "sixty-eight million, one hundred thirty thousand, seven hundred seventy".