68487078357650 has 48 divisors (see below), whose sum is σ = 130098241929600. Its totient is φ = 26811563496000.

The previous prime is 68487078357641. The next prime is 68487078357689. The reversal of 68487078357650 is 5675387078486.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195112001 + ... + 195462699.

It is an arithmetic number, because the mean of its divisors is an integer number (2710380040200).

Almost surely, 2^{68487078357650} is an apocalyptic number.

68487078357650 is a deficient number, since it is larger than the sum of its proper divisors (61611163571950).

68487078357650 is a wasteful number, since it uses less digits than its factorization.

68487078357650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433859 (or 433854 counting only the distinct ones).

The product of its (nonzero) digits is 1896652800, while the sum is 74.

The spelling of 68487078357650 in words is "sixty-eight trillion, four hundred eighty-seven billion, seventy-eight million, three hundred fifty-seven thousand, six hundred fifty".