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71868770855 = 572053393453
BaseRepresentation
bin100001011101110110…
…1100110101000100111
320212111122202211112222
41002323231212220213
52134141401131410
653003245102555
75122655321120
oct1027355465047
9225448684488
1071868770855
11285300582a2
1211b18857a5b
136a1466591b
14369acb1047
151d09700955
hex10bbb66a27

71868770855 has 8 divisors (see below), whose sum is σ = 98562885792. Its totient is φ = 49281442848.

The previous prime is 71868770821. The next prime is 71868770867. The reversal of 71868770855 is 55807786817.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71868770855 - 210 = 71868769831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026696692 + ... + 1026696761.

It is an arithmetic number, because the mean of its divisors is an integer number (12320360724).

Almost surely, 271868770855 is an apocalyptic number.

71868770855 is a deficient number, since it is larger than the sum of its proper divisors (26694114937).

71868770855 is a wasteful number, since it uses less digits than its factorization.

71868770855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053393465.

The product of its (nonzero) digits is 26342400, while the sum is 62.

The spelling of 71868770855 in words is "seventy-one billion, eight hundred sixty-eight million, seven hundred seventy thousand, eight hundred fifty-five".

Divisors: 1 5 7 35 2053393453 10266967265 14373754171 71868770855