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12486666671 = 431631781519
BaseRepresentation
bin10111010000100001…
…10110100110101111
31012020012212101111222
423220100312212233
5201033041313141
65423012333555
7621300626003
oct135020664657
935205771458
1012486666671
115328441536
1225059142bb
13123cc2ba7b
14866502703
154d135314b
hex2e84369af

12486666671 has 8 divisors (see below), whose sum is σ = 12855448320. Its totient is φ = 12121448472.

The previous prime is 12486666667. The next prime is 12486666691. The reversal of 12486666671 is 17666668421.

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 12486666671 - 22 = 12486666667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12486666641) 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, 883751 + ... + 897768.

It is an arithmetic number, because the mean of its divisors is an integer number (1606931040).

Almost surely, 212486666671 is an apocalyptic number.

12486666671 is a deficient number, since it is larger than the sum of its proper divisors (368781649).

12486666671 is a wasteful number, since it uses less digits than its factorization.

12486666671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781725.

The product of its digits is 3483648, while the sum is 53.

The spelling of 12486666671 in words is "twelve billion, four hundred eighty-six million, six hundred sixty-six thousand, six hundred seventy-one".

Divisors: 1 43 163 7009 1781519 76605317 290387597 12486666671