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57757377985 = 522361384503
BaseRepresentation
bin110101110010100110…
…111010010111000001
312112002012200210200121
4311302212322113001
51421241342043420
642311113020241
74113165420046
oct656246722701
9175065623617
1057757377985
1122549596a3a
12b23a9b4681
1355a5c54708
142b1cabd1cd
1517809172aa
hexd729ba5c1

57757377985 has 16 divisors (see below), whose sum is σ = 69734052864. Its totient is φ = 45923118912.

The previous prime is 57757377983. The next prime is 57757378079. The reversal of 57757377985 is 58977375775.

It is a cyclic number.

It is not a de Polignac number, because 57757377985 - 21 = 57757377983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57757377983) 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 15 ways as a sum of consecutive naturals, for example, 641244 + ... + 725746.

It is an arithmetic number, because the mean of its divisors is an integer number (4358378304).

Almost surely, 257757377985 is an apocalyptic number.

It is an amenable number.

57757377985 is a deficient number, since it is larger than the sum of its proper divisors (11976674879).

57757377985 is a wasteful number, since it uses less digits than its factorization.

57757377985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85344.

The product of its digits is 453789000, while the sum is 70.

The spelling of 57757377985 in words is "fifty-seven billion, seven hundred fifty-seven million, three hundred seventy-seven thousand, nine hundred eighty-five".

Divisors: 1 5 223 613 1115 3065 84503 136699 422515 683495 18844169 51800339 94220845 259001695 11551475597 57757377985