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6873844660657 = 1316316726937213
BaseRepresentation
bin110010000000111000100…
…0100011011100110110001
3220100010121001102201200121
41210001301010123212301
51400110113213120112
622341444534450241
71306422164401102
oct144016104334661
926303531381617
106873844660657
1122101aa123717
12930244803981
133ab27c127240
1419a9a56063a9
15bdc10179407
hex6407111b9b1

6873844660657 has 32 divisors (see below), whose sum is σ = 7496436987648. Its totient is φ = 6265202639616.

The previous prime is 6873844660637. The next prime is 6873844660693. The reversal of 6873844660657 is 7560664483786.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6873844660657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6873844660637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 952976383 + ... + 952983595.

It is an arithmetic number, because the mean of its divisors is an integer number (234263655864).

Almost surely, 26873844660657 is an apocalyptic number.

It is an amenable number.

6873844660657 is a deficient number, since it is larger than the sum of its proper divisors (622592326991).

6873844660657 is a wasteful number, since it uses less digits than its factorization.

6873844660657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10249.

The product of its (nonzero) digits is 975421440, while the sum is 70.

The spelling of 6873844660657 in words is "six trillion, eight hundred seventy-three billion, eight hundred forty-four million, six hundred sixty thousand, six hundred fifty-seven".

Divisors: 1 13 163 167 2119 2171 2693 7213 27221 35009 93769 353873 438959 449731 1175719 1204571 5706467 5846503 15284347 15659423 19424609 73306153 196345073 252519917 952979989 2552485949 3166211267 3243909703 41160746471 42170826139 528757281589 6873844660657