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2680431877639 = 19272775171953
BaseRepresentation
bin100111000000010110001…
…100001001111000000111
3100111020122220110122012101
4213000112030021320013
5322404011030041024
65411212353332531
7364440413015125
oct47002614117007
910436586418171
102680431877639
11943845a0952a
1237359b267147
131659c0949789
1493a3adb0915
1549ace1c7c44
hex27016309e07

2680431877639 has 8 divisors (see below), whose sum is σ = 2821611224240. Its totient is φ = 2539262929536.

The previous prime is 2680431877589. The next prime is 2680431877741. The reversal of 2680431877639 is 9367781340862.

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

It is not a de Polignac number, because 2680431877639 - 213 = 2680431869447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680431877939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2067714 + ... + 3104239.

It is an arithmetic number, because the mean of its divisors is an integer number (352701403030).

Almost surely, 22680431877639 is an apocalyptic number.

2680431877639 is a deficient number, since it is larger than the sum of its proper divisors (141179346601).

2680431877639 is a wasteful number, since it uses less digits than its factorization.

2680431877639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199249.

The product of its (nonzero) digits is 73156608, while the sum is 64.

The spelling of 2680431877639 in words is "two trillion, six hundred eighty billion, four hundred thirty-one million, eight hundred seventy-seven thousand, six hundred thirty-nine".

Divisors: 1 19 27277 518263 5171953 98267107 141075361981 2680431877639