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64848606977 = 7114319585807
BaseRepresentation
bin111100011001010001…
…110011011100000001
320012101102002120010102
4330121101303130001
52030302220410402
645442510412145
74454003031050
oct743121633401
9205342076112
1064848606977
1125558391270
1210699801055
13616611cabb
1431d27c6397
151a48252102
hexf19473701

64848606977 has 16 divisors (see below), whose sum is σ = 82730452992. Its totient is φ = 49356231120.

The previous prime is 64848606959. The next prime is 64848606989. The reversal of 64848606977 is 77960684846.

It is not a de Polignac number, because 64848606977 - 210 = 64848605953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64848606917) 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 15 ways as a sum of consecutive naturals, for example, 9789593 + ... + 9796214.

It is an arithmetic number, because the mean of its divisors is an integer number (5170653312).

Almost surely, 264848606977 is an apocalyptic number.

It is an amenable number.

64848606977 is a deficient number, since it is larger than the sum of its proper divisors (17881846015).

64848606977 is a wasteful number, since it uses less digits than its factorization.

64848606977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19585868.

The product of its (nonzero) digits is 97542144, while the sum is 65.

The spelling of 64848606977 in words is "sixty-four billion, eight hundred forty-eight million, six hundred six thousand, nine hundred seventy-seven".

Divisors: 1 7 11 43 77 301 473 3311 19585807 137100649 215443877 842189701 1508107139 5895327907 9264086711 64848606977