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86879169372 = 2237239930781
BaseRepresentation
bin101000011101001100…
…1101110101101011100
322022020202111002022210
41100322121232231130
52410412031404442
6103524534040420
76163642516662
oct1207231565534
9268222432283
1086879169372
1133933031926
1214a077a9110
1382673b2a38
1442c2640c32
1523d73bb19c
hex143a66eb5c

86879169372 has 12 divisors (see below), whose sum is σ = 202718061896. Its totient is φ = 28959723120.

The previous prime is 86879169367. The next prime is 86879169379. The reversal of 86879169372 is 27396197868.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86879169379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3619965379 + ... + 3619965402.

Almost surely, 286879169372 is an apocalyptic number.

It is an amenable number.

86879169372 is an abundant number, since it is smaller than the sum of its proper divisors (115838892524).

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

86879169372 is a wasteful number, since it uses less digits than its factorization.

86879169372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7239930788 (or 7239930786 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 66.

The spelling of 86879169372 in words is "eighty-six billion, eight hundred seventy-nine million, one hundred sixty-nine thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 7239930781 14479861562 21719792343 28959723124 43439584686 86879169372