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64423463654 = 21111467255371
BaseRepresentation
bin111011111111111100…
…000000101011100110
320011021210010001010102
4323333330000223212
52023414401314104
645332402224102
74440321256124
oct737774005346
9204253101112
1064423463654
112535a402850
121059b355032
1360c9016cc4
143192158914
151a20c73a1e
hexefff00ae6

64423463654 has 16 divisors (see below), whose sum is σ = 105429819456. Its totient is φ = 29280724200.

The previous prime is 64423463639. The next prime is 64423463677. The reversal of 64423463654 is 45636432446.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64423463599 and 64423463608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124589 + ... + 379959.

It is an arithmetic number, because the mean of its divisors is an integer number (6589363716).

Almost surely, 264423463654 is an apocalyptic number.

64423463654 is a deficient number, since it is larger than the sum of its proper divisors (41006355802).

64423463654 is a wasteful number, since it uses less digits than its factorization.

64423463654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266851.

The product of its digits is 4976640, while the sum is 47.

The spelling of 64423463654 in words is "sixty-four billion, four hundred twenty-three million, four hundred sixty-three thousand, six hundred fifty-four".

Divisors: 1 2 11 22 11467 22934 126137 252274 255371 510742 2809081 5618162 2928339257 5856678514 32211731827 64423463654