68578850 has 24 divisors (see below), whose sum is σ = 135061668. Its totient is φ = 25817600.

The previous prime is 68578837. The next prime is 68578879. The reversal of 68578850 is 5887586.

It can be written as a sum of positive squares in 6 ways, for example, as 57957769 + 10621081 = 7613^2 + 3259^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68578795 and 68578804.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 39491 + ... + 41190.

Almost surely, 2^68578850 is an apocalyptic number.

68578850 is a deficient number, since it is larger than the sum of its proper divisors (66482818).

68578850 is a wasteful number, since it uses less digits than its factorization.

68578850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80710 (or 80705 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 47.

The square root of 68578850 is about 8281.2348113068. The cubic root of 68578850 is about 409.3204089744.

The spelling of 68578850 in words is "sixty-eight million, five hundred seventy-eight thousand, eight hundred fifty".