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85868124475 = 527490674997
BaseRepresentation
bin100111111111000100…
…0111001100100111011
322012122022000200110111
41033332020321210323
52401324214440400
6103240335525151
76126615005140
oct1177610714473
9265568020414
1085868124475
1133464354931
12147850897b7
138135aa9513
14422825a3c7
1523787573ba
hex13fe23993b

85868124475 has 12 divisors (see below), whose sum is σ = 121687399504. Its totient is φ = 58880999520.

The previous prime is 85868124473. The next prime is 85868124481. The reversal of 85868124475 is 57442186858.

It is not a de Polignac number, because 85868124475 - 21 = 85868124473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85868124473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245337324 + ... + 245337673.

Almost surely, 285868124475 is an apocalyptic number.

85868124475 is a deficient number, since it is larger than the sum of its proper divisors (35819275029).

85868124475 is a wasteful number, since it uses less digits than its factorization.

85868124475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490675014 (or 490675009 counting only the distinct ones).

The product of its digits is 17203200, while the sum is 58.

The spelling of 85868124475 in words is "eighty-five billion, eight hundred sixty-eight million, one hundred twenty-four thousand, four hundred seventy-five".

Divisors: 1 5 7 25 35 175 490674997 2453374985 3434724979 12266874925 17173624895 85868124475