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11771867485441 = 73617464942039
BaseRepresentation
bin1010101101001101100111…
…1110101101010100000001
31112200101020200111121100101
42223103121332231110001
53020332241034013231
641011530554322401
72323326564435430
oct253233176552401
945611220447311
1011771867485441
11382946a338078
1213a1572729401
1367510bb967bb
142c9a934d5117
1515632ecab661
hexab4d9fad501

11771867485441 has 8 divisors (see below), whose sum is σ = 13457282405760. Its totient is φ = 10087382456448.

The previous prime is 11771867485439. The next prime is 11771867485463. The reversal of 11771867485441 is 14458476817711.

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 11771867485441 - 21 = 11771867485439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11771867485481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232445701 + ... + 232496338.

It is an arithmetic number, because the mean of its divisors is an integer number (1682160300720).

Almost surely, 211771867485441 is an apocalyptic number.

It is an amenable number.

11771867485441 is a deficient number, since it is larger than the sum of its proper divisors (1685414920319).

11771867485441 is an equidigital number, since it uses as much as digits as its factorization.

11771867485441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464945663.

The product of its digits is 42147840, while the sum is 64.

The spelling of 11771867485441 in words is "eleven trillion, seven hundred seventy-one billion, eight hundred sixty-seven million, four hundred eighty-five thousand, four hundred forty-one".

Divisors: 1 7 3617 25319 464942039 3254594273 1681695355063 11771867485441