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12875068821 = 337148977899
BaseRepresentation
bin10111111110110100…
…11111010110010101
31020020021201021002210
423333122133112111
5202332004200241
65525325224033
7634025164536
oct137732372625
936207637083
1012875068821
11550770584a
1225b3a02019
1312a253c424
148a1d2868d
155054c5316
hex2ff69f595

12875068821 has 16 divisors (see below), whose sum is σ = 17642792000. Its totient is φ = 8345680128.

The previous prime is 12875068807. The next prime is 12875068889. The reversal of 12875068821 is 12886057821.

It is not a de Polignac number, because 12875068821 - 221 = 12872971669 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 (12875068891) 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 15 ways as a sum of consecutive naturals, for example, 126330 + ... + 204228.

It is an arithmetic number, because the mean of its divisors is an integer number (1102674500).

Almost surely, 212875068821 is an apocalyptic number.

It is an amenable number.

12875068821 is a deficient number, since it is larger than the sum of its proper divisors (4767723179).

12875068821 is a wasteful number, since it uses less digits than its factorization.

12875068821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79428.

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 12875068821 in words is "twelve billion, eight hundred seventy-five million, sixty-eight thousand, eight hundred twenty-one".

Divisors: 1 3 37 111 1489 4467 55093 77899 165279 233697 2882263 8646789 115991611 347974833 4291689607 12875068821