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6423868629895 = 514235743157211
BaseRepresentation
bin101110101111010110001…
…1010000110001110000111
3211202010010110010221200111
41131132230122012032013
51320222040332124040
621355030130453451
71232052311264353
oct135365432061607
924663113127614
106423868629895
11205739040a762
12878ba4734287
133779ca9bc182
14182cb9d92463
15b2176072dea
hex5d7ac686387

6423868629895 has 16 divisors (see below), whose sum is σ = 7715451820032. Its totient is φ = 5134556576160.

The previous prime is 6423868629877. The next prime is 6423868629911. The reversal of 6423868629895 is 5989268683246.

It is not a de Polignac number, because 6423868629895 - 27 = 6423868629767 is a prime.

It is a super-2 number, since 2×64238686298952 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40782840 + ... + 40940050.

It is an arithmetic number, because the mean of its divisors is an integer number (482215738752).

Almost surely, 26423868629895 is an apocalyptic number.

6423868629895 is a deficient number, since it is larger than the sum of its proper divisors (1291583190137).

6423868629895 is a wasteful number, since it uses less digits than its factorization.

6423868629895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164382.

The product of its digits is 2149908480, while the sum is 76.

The spelling of 6423868629895 in words is "six trillion, four hundred twenty-three billion, eight hundred sixty-eight million, six hundred twenty-nine thousand, eight hundred ninety-five".

Divisors: 1 5 1423 5743 7115 28715 157211 786055 8172289 40861445 223711253 902862773 1118556265 4514313865 1284773725979 6423868629895