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26681137153 = 1113934635039
BaseRepresentation
bin11000110110010100…
…011101100000000001
32112212110021012102221
4120312110131200001
5414120332342103
620131313211041
71633116631606
oct306624354001
975773235387
1026681137153
1110351896280
125207560a81
13269290a128
14141175c6ad
15a6259c1bd
hex63651d801

26681137153 has 16 divisors (see below), whose sum is σ = 29330380800. Its totient is φ = 24069347280.

The previous prime is 26681137141. The next prime is 26681137159. The reversal of 26681137153 is 35173118662.

It is not a de Polignac number, because 26681137153 - 25 = 26681137121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26681137159) 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, 5292408 + ... + 5297446.

It is an arithmetic number, because the mean of its divisors is an integer number (1833148800).

Almost surely, 226681137153 is an apocalyptic number.

It is an amenable number.

26681137153 is a deficient number, since it is larger than the sum of its proper divisors (2649243647).

26681137153 is a wasteful number, since it uses less digits than its factorization.

26681137153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8652.

The product of its digits is 181440, while the sum is 43.

The spelling of 26681137153 in words is "twenty-six billion, six hundred eighty-one million, one hundred thirty-seven thousand, one hundred fifty-three".

Divisors: 1 11 139 1529 3463 5039 38093 55429 481357 700421 5294927 7704631 17450057 191950627 2425557923 26681137153