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57684153827 is a prime number
BaseRepresentation
bin110101101110001111…
…100101010111100011
312111220002220122000202
4311232033211113203
51421114120410302
642255535335415
74111316134406
oct655617452743
9174802818022
1057684153827
1122511223603
12b21a38156b
135593a27501
142b1309bd3d
1517792a1202
hexd6e3e55e3

57684153827 has 2 divisors, whose sum is σ = 57684153828. Its totient is φ = 57684153826.

The previous prime is 57684153799. The next prime is 57684153829. The reversal of 57684153827 is 72835148675.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57684153827 - 26 = 57684153763 is a prime.

Together with 57684153829, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57684153829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28842076913 + 28842076914.

It is an arithmetic number, because the mean of its divisors is an integer number (28842076914).

Almost surely, 257684153827 is an apocalyptic number.

57684153827 is a deficient number, since it is larger than the sum of its proper divisors (1).

57684153827 is an equidigital number, since it uses as much as digits as its factorization.

57684153827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11289600, while the sum is 56.

The spelling of 57684153827 in words is "fifty-seven billion, six hundred eighty-four million, one hundred fifty-three thousand, eight hundred twenty-seven".