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64465354371 = 3115933294259
BaseRepresentation
bin111100000010011011…
…110011111010000011
320011101200221022101110
4330002123303322003
52024011112314441
645340500134403
74441340320365
oct740233637203
9204350838343
1064465354371
1125381014980
12105b1397403
1361048c3302
143197940d35
151a2479ab16
hexf026f3e83

64465354371 has 16 divisors (see below), whose sum is σ = 93925941120. Its totient is φ = 39004014720.

The previous prime is 64465354367. The next prime is 64465354379. The reversal of 64465354371 is 17345356446.

It is not a de Polignac number, because 64465354371 - 22 = 64465354367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64465354371.

It is not an unprimeable number, because it can be changed into a prime (64465354379) 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 15 ways as a sum of consecutive naturals, for example, 1627561 + ... + 1666698.

It is an arithmetic number, because the mean of its divisors is an integer number (5870371320).

Almost surely, 264465354371 is an apocalyptic number.

64465354371 is a deficient number, since it is larger than the sum of its proper divisors (29460586749).

64465354371 is a wasteful number, since it uses less digits than its factorization.

64465354371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294866.

The product of its digits is 3628800, while the sum is 48.

The spelling of 64465354371 in words is "sixty-four billion, four hundred sixty-five million, three hundred fifty-four thousand, three hundred seventy-one".

Divisors: 1 3 11 33 593 1779 6523 19569 3294259 9882777 36236849 108710547 1953495587 5860486761 21488451457 64465354371