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6808754001554 = 2191789100155247
BaseRepresentation
bin110001100010100100101…
…0111010001011010010010
3220002220120202212122110122
41203011021113101122102
51343023312011022204
622251522020030242
71301626162046501
oct143051127213222
926086522778418
106808754001554
11219563814807a
1291b6b9b32382
133a50a7b1853b
1419778ca12838
15bc1a0a630be
hex631495d1692

6808754001554 has 16 divisors (see below), whose sum is σ = 10756673635200. Its totient is φ = 3223396437264.

The previous prime is 6808754001541. The next prime is 6808754001559. The reversal of 6808754001554 is 4551004578086.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6808754001496 and 6808754001505.

It is not an unprimeable number, because it can be changed into a prime (6808754001559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50009642 + ... + 50145605.

It is an arithmetic number, because the mean of its divisors is an integer number (672292102200).

Almost surely, 26808754001554 is an apocalyptic number.

6808754001554 is a deficient number, since it is larger than the sum of its proper divisors (3947919633646).

6808754001554 is a wasteful number, since it uses less digits than its factorization.

6808754001554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100157057.

The product of its (nonzero) digits is 5376000, while the sum is 53.

The spelling of 6808754001554 in words is "six trillion, eight hundred eight billion, seven hundred fifty-four million, one thousand, five hundred fifty-four".

Divisors: 1 2 19 38 1789 3578 33991 67982 100155247 200310494 1902949693 3805899386 179177736883 358355473766 3404377000777 6808754001554