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12639025002775 = 522810811798631
BaseRepresentation
bin1011011111101100000010…
…0110000111100100010111
31122202021112101100201000211
42313323000212013210113
53124034210400042100
642514142105350251
72443065551633563
oct267730046074427
948667471321024
1012639025002775
1140331a912a606
12150163ba98387
13708b164079c2
14319a36b506a3
1516db83d821ba
hexb7ec0987917

12639025002775 has 12 divisors (see below), whose sum is σ = 15672455474544. Its totient is φ = 10111178408000.

The previous prime is 12639025002757. The next prime is 12639025002797. The reversal of 12639025002775 is 57720052093621.

It is not a de Polignac number, because 12639025002775 - 25 = 12639025002743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6127710 + ... + 7926340.

It is an arithmetic number, because the mean of its divisors is an integer number (1306037956212).

Almost surely, 212639025002775 is an apocalyptic number.

12639025002775 is a deficient number, since it is larger than the sum of its proper divisors (3033430471769).

12639025002775 is a wasteful number, since it uses less digits than its factorization.

12639025002775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079722 (or 2079717 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 12639025002775 in words is "twelve trillion, six hundred thirty-nine billion, twenty-five million, two thousand, seven hundred seventy-five".

Divisors: 1 5 25 281081 1405405 1798631 7027025 8993155 44965775 505561000111 2527805000555 12639025002775