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64969605119 = 1929117912169
BaseRepresentation
bin111100100000011111…
…010111111111111111
320012200211202220101002
4330200133113333333
52031024204330434
645502512040515
74460002350236
oct744037277777
9205624686332
1064969605119
112560a714a31
121071223313b
136185206133
1432048c1b1d
151a53ba357e
hexf207d7fff

64969605119 has 8 divisors (see below), whose sum is σ = 70747302000. Its totient is φ = 59427732672.

The previous prime is 64969605083. The next prime is 64969605121. The reversal of 64969605119 is 91150696946.

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 64969605119 - 28 = 64969604863 is a prime.

It is a super-2 number, since 2×649696051192 (a number of 22 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 (64969605139) 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, 58955534 + ... + 58956635.

It is an arithmetic number, because the mean of its divisors is an integer number (8843412750).

Almost surely, 264969605119 is an apocalyptic number.

64969605119 is a deficient number, since it is larger than the sum of its proper divisors (5777696881).

64969605119 is a wasteful number, since it uses less digits than its factorization.

64969605119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117912217.

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 64969605119 in words is "sixty-four billion, nine hundred sixty-nine million, six hundred five thousand, one hundred nineteen".

Divisors: 1 19 29 551 117912169 2240331211 3419452901 64969605119