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64338468843 = 31121011754861
BaseRepresentation
bin111011111010110111…
…110001111111101011
320011001212011212011110
4323322313301333223
52023231122000333
645320124401403
74435236650625
oct737267617753
9204055155143
1064338468843
112531642aa00
12105769a6263
1360b452830c
143184b51c15
151a18585063
hexefadf1feb

64338468843 has 24 divisors (see below), whose sum is σ = 95225831568. Its totient is φ = 38606920000.

The previous prime is 64338468833. The next prime is 64338468893. The reversal of 64338468843 is 34886483346.

It is not a de Polignac number, because 64338468843 - 217 = 64338337771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64338468833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 840768 + ... + 914093.

It is an arithmetic number, because the mean of its divisors is an integer number (3967742982).

Almost surely, 264338468843 is an apocalyptic number.

64338468843 is a deficient number, since it is larger than the sum of its proper divisors (30887362725).

64338468843 is a wasteful number, since it uses less digits than its factorization.

64338468843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754987 (or 1754976 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 57.

The spelling of 64338468843 in words is "sixty-four billion, three hundred thirty-eight million, four hundred sixty-eight thousand, eight hundred forty-three".

Divisors: 1 3 11 33 101 121 303 363 1111 3333 12221 36663 1754861 5264583 19303471 57910413 177240961 212338181 531722883 637014543 1949650571 5848951713 21446156281 64338468843