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768855048191 = 4197193325383
BaseRepresentation
bin10110011000000110101…
…01001111111111111111
32201111112211102020222222
423030003111033333333
5100044103343020231
61345112423555555
7106355642036156
oct13140325177777
92644484366888
10768855048191
112770846a34aa
12105013bbbbbb
135766c6251c9
14292d9c3a59d
1514eede0327b
hexb30354ffff

768855048191 has 8 divisors (see below), whose sum is σ = 795727280544. Its totient is φ = 742369466880.

The previous prime is 768855048187. The next prime is 768855048217. The reversal of 768855048191 is 191840558867.

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 768855048191 - 22 = 768855048187 is a prime.

It is a super-2 number, since 2×7688550481912 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768855048161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96658715 + ... + 96666668.

It is an arithmetic number, because the mean of its divisors is an integer number (99465910068).

Almost surely, 2768855048191 is an apocalyptic number.

768855048191 is a deficient number, since it is larger than the sum of its proper divisors (26872232353).

768855048191 is a wasteful number, since it uses less digits than its factorization.

768855048191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193325521.

The product of its (nonzero) digits is 19353600, while the sum is 62.

The spelling of 768855048191 in words is "seven hundred sixty-eight billion, eight hundred fifty-five million, forty-eight thousand, one hundred ninety-one".

Divisors: 1 41 97 3977 193325383 7926340703 18752562151 768855048191