68881270 has 32 divisors (see below), whose sum is σ = 133562880. Its totient is φ = 25492320.

The previous prime is 68881259. The next prime is 68881279. The reversal of 68881270 is 7218886.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68881279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3955 + ... + 12385.

It is an arithmetic number, because the mean of its divisors is an integer number (4173840).

Almost surely, 2^68881270 is an apocalyptic number.

68881270 is a deficient number, since it is larger than the sum of its proper divisors (64681610).

68881270 is a wasteful number, since it uses less digits than its factorization.

68881270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 68881270 is about 8299.4740797234. The cubic root of 68881270 is about 409.9212023862.

The spelling of 68881270 in words is "sixty-eight million, eight hundred eighty-one thousand, two hundred seventy".