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67704066701 = 83815711647
BaseRepresentation
bin111111000011011110…
…100001001010001101
320110202102010221110222
4333003132201022031
52102124220113301
651034113041125
74614525033365
oct770336411215
9213672127428
1067704066701
11267931a9437
1211155b561a5
1364cc89753b
1433c3b259a5
151b63c9431b
hexfc37a128d

67704066701 has 4 divisors (see below), whose sum is σ = 68519778432. Its totient is φ = 66888354972.

The previous prime is 67704066673. The next prime is 67704066707. The reversal of 67704066701 is 10766040776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-67704066701 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 (67704066707) 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 3 ways as a sum of consecutive naturals, for example, 407855741 + ... + 407855906.

It is an arithmetic number, because the mean of its divisors is an integer number (17129944608).

Almost surely, 267704066701 is an apocalyptic number.

It is an amenable number.

67704066701 is a deficient number, since it is larger than the sum of its proper divisors (815711731).

67704066701 is an equidigital number, since it uses as much as digits as its factorization.

67704066701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815711730.

The product of its (nonzero) digits is 296352, while the sum is 44.

The spelling of 67704066701 in words is "sixty-seven billion, seven hundred four million, sixty-six thousand, seven hundred one".

Divisors: 1 83 815711647 67704066701