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27485261621929 = 1103163715222139
BaseRepresentation
bin1100011111111011010010…
…10000010110101010101001
310121022120021010210000102001
412033331221100112222221
512100304303433400204
6134242315504211001
75534513256020266
oct617755120265251
9117276233700361
1027485261621929
118837485712231
1230ba9b2609a61
131244b06492657
146b041811626d
15329e4c3314a4
hex18ff69416aa9

27485261621929 has 8 divisors (see below), whose sum is σ = 27526987313280. Its totient is φ = 27443566380336.

The previous prime is 27485261621891. The next prime is 27485261621957. The reversal of 27485261621929 is 92912616258472.

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 27485261621929 - 27 = 27485261621801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27485261621959) 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, 5805459 + ... + 9416680.

It is an arithmetic number, because the mean of its divisors is an integer number (3440873414160).

Almost surely, 227485261621929 is an apocalyptic number.

It is an amenable number.

27485261621929 is a deficient number, since it is larger than the sum of its proper divisors (41725691351).

27485261621929 is a wasteful number, since it uses less digits than its factorization.

27485261621929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15224879.

The product of its digits is 52254720, while the sum is 64.

The spelling of 27485261621929 in words is "twenty-seven trillion, four hundred eighty-five billion, two hundred sixty-one million, six hundred twenty-one thousand, nine hundred twenty-nine".

Divisors: 1 1103 1637 1805611 15222139 16790019317 24918641543 27485261621929