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986447873868 = 223121767546417
BaseRepresentation
bin11100101101011001110…
…00000000011101001100
310111022012020201002100120
432112230320000131030
5112130221123430433
62033100133224540
7131161045403142
oct16265470003514
93438166632316
10986447873868
11350394120a56
1213b21b492150
13720386c09b2
1435a5c637592
151a9d6b017b3
hexe5ace0074c

986447873868 has 24 divisors (see below), whose sum is σ = 2303603039472. Its totient is φ = 328545767424.

The previous prime is 986447873863. The next prime is 986447873893. The reversal of 986447873868 is 868378744689.

It is a junction number, because it is equal to n+sod(n) for n = 986447873793 and 986447873802.

It is not an unprimeable number, because it can be changed into a prime (986447873863) 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, 33758605 + ... + 33787812.

It is an arithmetic number, because the mean of its divisors is an integer number (95983459978).

Almost surely, 2986447873868 is an apocalyptic number.

It is an amenable number.

986447873868 is an abundant number, since it is smaller than the sum of its proper divisors (1317155165604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

986447873868 is a wasteful number, since it uses less digits than its factorization.

986447873868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67547641 (or 67547639 counting only the distinct ones).

The product of its digits is 3121348608, while the sum is 78.

The spelling of 986447873868 in words is "nine hundred eighty-six billion, four hundred forty-seven million, eight hundred seventy-three thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1217 2434 3651 4868 7302 14604 67546417 135092834 202639251 270185668 405278502 810557004 82203989489 164407978978 246611968467 328815957956 493223936934 986447873868