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68864488446886 = 21110156595476607
BaseRepresentation
bin11111010100001110000110…
…10111110001101110100110
3100000211101021121022012011221
433222013003113301232212
533011233433020300021
6402243524222050554
720335203135466456
oct1752070327615646
9300741247265157
1068864488446886
111aa402a1486730
127882495a19a5a
132c56b7ca39212
1413010b7d6dd66
157e64cb618241
hex3ea1c35f1ba6

68864488446886 has 32 divisors (see below), whose sum is σ = 113823191900160. Its totient is φ = 30986636748000.

The previous prime is 68864488446883. The next prime is 68864488446931.

68864488446886 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 68864488446797 and 68864488446806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68864488446883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9835995 + ... + 15312601.

It is an arithmetic number, because the mean of its divisors is an integer number (3556974746880).

Almost surely, 268864488446886 is an apocalyptic number.

68864488446886 is a deficient number, since it is larger than the sum of its proper divisors (44958703453274).

68864488446886 is a wasteful number, since it uses less digits than its factorization.

68864488446886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482380.

The product of its digits is 86973087744, while the sum is 88.

The spelling of 68864488446886 in words is "sixty-eight trillion, eight hundred sixty-four billion, four hundred eighty-eight million, four hundred forty-six thousand, eight hundred eighty-six".

Divisors: 1 2 11 22 101 202 1111 2222 5659 11318 62249 124498 571559 1143118 5476607 6287149 10953214 12574298 60242677 120485354 553137307 1106274614 6084510377 12169020754 30992119013 61984238026 340913309143 681826618286 3130204020313 6260408040626 34432244223443 68864488446886