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26354680469 = 1348713273137
BaseRepresentation
bin11000100010110111…
…001000001010010101
32112000200222111001122
4120202313020022111
5412433244233334
620035052133325
71622044042055
oct304267101225
975020874048
1026354680469
11101a4591567
125136167245
1326400a80b0
1413c025d565
15a43ab432e
hex622dc8295

26354680469 has 16 divisors (see below), whose sum is σ = 28470747648. Its totient is φ = 24251415552.

The previous prime is 26354680459. The next prime is 26354680483. The reversal of 26354680469 is 96408645362.

It is not a de Polignac number, because 26354680469 - 24 = 26354680453 is a prime.

It is a super-2 number, since 2×263546804692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26354680469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26354680409) 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, 8399669 + ... + 8402805.

It is an arithmetic number, because the mean of its divisors is an integer number (1779421728).

Almost surely, 226354680469 is an apocalyptic number.

It is an amenable number.

26354680469 is a deficient number, since it is larger than the sum of its proper divisors (2116067179).

26354680469 is a wasteful number, since it uses less digits than its factorization.

26354680469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964.

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 26354680469 in words is "twenty-six billion, three hundred fifty-four million, six hundred eighty thousand, four hundred sixty-nine".

Divisors: 1 13 487 1327 3137 6331 17251 40781 646249 1527719 4162799 8401237 19860347 54116387 2027283113 26354680469