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26667068047 = 671068737243
BaseRepresentation
bin11000110101011110…
…110010101010001111
32112211110210102020221
4120311132302222033
5414103232134142
620130051452211
71632556224034
oct306536625217
975743712227
1026667068047
1110344956a14
1252028b7067
13268ca22409
14140d93938b
15a6121d767
hex6357b2a8f

26667068047 has 8 divisors (see below), whose sum is σ = 27068343296. Its totient is φ = 26265888792.

The previous prime is 26667068027. The next prime is 26667068063. The reversal of 26667068047 is 74086076662.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-26667068047 is a prime.

It is a super-2 number, since 2×266670680472 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26667067985 and 26667068003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26667068027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697408 + ... + 734650.

It is an arithmetic number, because the mean of its divisors is an integer number (3383542912).

Almost surely, 226667068047 is an apocalyptic number.

26667068047 is a deficient number, since it is larger than the sum of its proper divisors (401275249).

26667068047 is a wasteful number, since it uses less digits than its factorization.

26667068047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47997.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 26667068047 in words is "twenty-six billion, six hundred sixty-seven million, sixty-eight thousand, forty-seven".

Divisors: 1 67 10687 37243 716029 2495281 398015941 26667068047