68719355 has 16 divisors (see below), whose sum is σ = 87609600. Its totient is φ = 51566592.

The previous prime is 68719351. The next prime is 68719361. The reversal of 68719355 is 55391786.

It is a cyclic number.

It is not a de Polignac number, because 68719355 - 2² = 68719351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68719351) 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, 27446 + ... + 29844.

It is an arithmetic number, because the mean of its divisors is an integer number (5475600).

Almost surely, 2^68719355 is an apocalyptic number.

68719355 is a deficient number, since it is larger than the sum of its proper divisors (18890245).

68719355 is a wasteful number, since it uses less digits than its factorization.

68719355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758.

The product of its digits is 226800, while the sum is 44.

The square root of 68719355 is about 8289.7138068814. The cubic root of 68719355 is about 409.5997581322.

The spelling of 68719355 in words is "sixty-eight million, seven hundred nineteen thousand, three hundred fifty-five".