68628575 has 24 divisors (see below), whose sum is σ = 93029760. Its totient is φ = 49996800.

The previous prime is 68628563. The next prime is 68628577. The reversal of 68628575 is 57582686.

It is not a de Polignac number, because 68628575 - 2¹⁴ = 68612191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68628577) 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 23 ways as a sum of consecutive naturals, for example, 10571 + ... + 15779.

It is an arithmetic number, because the mean of its divisors is an integer number (3876240).

Almost surely, 2^68628575 is an apocalyptic number.

68628575 is a deficient number, since it is larger than the sum of its proper divisors (24401185).

68628575 is a wasteful number, since it uses less digits than its factorization.

68628575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267 (or 5262 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 68628575 is about 8284.2365369417. The cubic root of 68628575 is about 409.4193147840.

The spelling of 68628575 in words is "sixty-eight million, six hundred twenty-eight thousand, five hundred seventy-five".