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26868742886874 = 2374991282028003
BaseRepresentation
bin1100001101111110111011…
…11000000001010111011010
310112010121220220000021101210
412012333131320001113122
512010204141134334444
6133051155144123550
75442126332154660
oct606773570012732
9115117826007353
1026868742886874
118619a73990589
12301b4137665b6
1311cb933467405
1468c65006cc30
15318db71a37b9
hex186fdde015da

26868742886874 has 32 divisors (see below), whose sum is σ = 61537344192000. Its totient is φ = 7661399339952.

The previous prime is 26868742886851. The next prime is 26868742886891. The reversal of 26868742886874 is 47868824786862.

It is a happy number.

It is a super-2 number, since 2×268687428868742 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640993044 + ... + 641034959.

It is an arithmetic number, because the mean of its divisors is an integer number (1923042006000).

Almost surely, 226868742886874 is an apocalyptic number.

26868742886874 is an abundant number, since it is smaller than the sum of its proper divisors (34668601305126).

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

26868742886874 is a wasteful number, since it uses less digits than its factorization.

26868742886874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282028514.

The product of its digits is 22196256768, while the sum is 84.

The spelling of 26868742886874 in words is "twenty-six trillion, eight hundred sixty-eight billion, seven hundred forty-two million, eight hundred eighty-six thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 499 998 1497 2994 3493 6986 10479 20958 1282028003 2564056006 3846084009 7692168018 8974196021 17948392042 26922588063 53845176126 639731973497 1279463946994 1919195920491 3838391840982 4478123814479 8956247628958 13434371443437 26868742886874