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64829465461 = 298292696621
BaseRepresentation
bin111100011000001000…
…110010001101110101
320012100002002001220101
4330120020302031311
52030232320343321
645440544234101
74453351235635
oct743010621565
9205302061811
1064829465461
11255485a7a32
121069330b931
13616217a367
1431d00426c5
151a46720791
hexf18232375

64829465461 has 8 divisors (see below), whose sum is σ = 67145887800. Its totient is φ = 62518438080.

The previous prime is 64829465423. The next prime is 64829465471. The reversal of 64829465461 is 16456492846.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5741092900 + 59088372561 = 75770^2 + 243081^2 .

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 64829465461 - 215 = 64829432693 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 (64829465401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1324270 + ... + 1372351.

It is an arithmetic number, because the mean of its divisors is an integer number (8393235975).

Almost surely, 264829465461 is an apocalyptic number.

It is an amenable number.

64829465461 is a deficient number, since it is larger than the sum of its proper divisors (2316422339).

64829465461 is a wasteful number, since it uses less digits than its factorization.

64829465461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697479.

The product of its digits is 9953280, while the sum is 55.

The spelling of 64829465461 in words is "sixty-four billion, eight hundred twenty-nine million, four hundred sixty-five thousand, four hundred sixty-one".

Divisors: 1 29 829 24041 2696621 78202009 2235498809 64829465461