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12638825006875 = 5420222120011
BaseRepresentation
bin1011011111101011010010…
…1011001100011100011011
31122202021000110000212020021
42313322310223030130123
53124033303200210000
642514110203011311
72443060602664264
oct267726453143433
948667013025207
1012638825006875
11403310624a741
1215015a4b09b37
13708ab3b52532
14319a1836d96b
1516db7152911a
hexb7eb4acc71b

12638825006875 has 10 divisors (see below), whose sum is σ = 15793475729372. Its totient is φ = 10111060005000.

The previous prime is 12638825006861. The next prime is 12638825006903. The reversal of 12638825006875 is 57860052883621.

It is not a de Polignac number, because 12638825006875 - 27 = 12638825006747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10111059381 + ... + 10111060630.

Almost surely, 212638825006875 is an apocalyptic number.

12638825006875 is a deficient number, since it is larger than the sum of its proper divisors (3154650722497).

12638825006875 is an frugal number, since it uses more digits than its factorization.

12638825006875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20222120031 (or 20222120016 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 61.

The spelling of 12638825006875 in words is "twelve trillion, six hundred thirty-eight billion, eight hundred twenty-five million, six thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 625 20222120011 101110600055 505553000275 2527765001375 12638825006875