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68877677886 = 2311479612981
BaseRepresentation
bin100000000100101101…
…1011111010100111110
320120210012111120100220
41000021123133110332
52112030141143021
651350355402210
74655565413343
oct1001133372476
9216705446326
1068877677886
1127235720936
1211422bb3366
136658a7c624
1434959467ca
151bd1d1acc6
hex10096df53e

68877677886 has 8 divisors (see below), whose sum is σ = 137755355784. Its totient is φ = 22959225960.

The previous prime is 68877677851. The next prime is 68877677959.

68877677886 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

68877677886 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5739806485 + ... + 5739806496.

It is an arithmetic number, because the mean of its divisors is an integer number (17219419473).

Almost surely, 268877677886 is an apocalyptic number.

68877677886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68877677886 is a wasteful number, since it uses less digits than its factorization.

68877677886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11479612986.

The product of its digits is 2124251136, while the sum is 78.

The spelling of 68877677886 in words is "sixty-eight billion, eight hundred seventy-seven million, six hundred seventy-seven thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 11479612981 22959225962 34438838943 68877677886