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12886864651 = 79943317293
BaseRepresentation
bin11000000000001110…
…11111001100001011
31020021002220112221101
430000013133030023
5202343014132101
65530430122231
7634230353653
oct140007371413
936232815841
1012886864651
115513332171
1225b7950377
1312a4b0c4cb
148a3719363
15506555401
hex3001df30b

12886864651 has 8 divisors (see below), whose sum is σ = 13052127680. Its totient is φ = 12721655232.

The previous prime is 12886864583. The next prime is 12886864657. The reversal of 12886864651 is 15646868821.

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

It is a cyclic number.

It is not a de Polignac number, because 12886864651 - 213 = 12886856459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12886864592 and 12886864601.

It is not an unprimeable number, because it can be changed into a prime (12886864657) 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, 736561 + ... + 753853.

It is an arithmetic number, because the mean of its divisors is an integer number (1631515960).

Almost surely, 212886864651 is an apocalyptic number.

12886864651 is a deficient number, since it is larger than the sum of its proper divisors (165263029).

12886864651 is an equidigital number, since it uses as much as digits as its factorization.

12886864651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26805.

The product of its digits is 4423680, while the sum is 55.

The spelling of 12886864651 in words is "twelve billion, eight hundred eighty-six million, eight hundred sixty-four thousand, six hundred fifty-one".

Divisors: 1 79 9433 17293 745207 1366147 163124869 12886864651